21870810

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:130

約数の個数: 160

約数和(自身を含む): 66350592

約数和(自身を除く): 44479782

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 67, 78, 81, 90, 93, 117, 130, 134, 135, 155, 162, 186, 195, 201, 234, 270, 279, 310, 335, 351, 390, 402, 403, 405, 465, 558, 585, 603, 670, 702, 806, 810, 837, 871, 930, 1005, 1053, 1170, 1206, 1209, 1395, 1674, 1742, 1755, 1809, 2010, 2015, 2077, 2106, 2418, 2511, 2613, 2790, 3015, 3510, 3618, 3627, 4030, 4154, 4185, 4355, 5022, 5226, 5265, 5427, 6030, 6045, 6231, 7254, 7839, 8370, 8710, 9045, 10385, 10530, 10854, 10881, 12090, 12462, 12555, 13065, 15678, 18090, 18135, 18693, 20770, 21762, 23517, 25110, 26130, 27001, 27135, 31155, 32643, 36270, 37386, 39195, 47034, 54002, 54270, 54405, 56079, 62310, 65286, 70551, 78390, 81003, 93465, 108810, 112158, 117585, 135005, 141102, 162006, 163215, 168237, 186930, 235170, 243009, 270010, 280395, 326430, 336474, 352755, 405015, 486018, 560790, 705510, 729027, 810030, 841185, 1215045, 1458054, 1682370, 2187081, 2430090, 3645135, 4374162, 7290270, 10935405, 21870810]

約数ペア:

[(1, 21870810), (2, 10935405), (3, 7290270), (5, 4374162), (6, 3645135), (9, 2430090), (10, 2187081), (13, 1682370), (15, 1458054), (18, 1215045), (26, 841185), (27, 810030), (30, 729027), (31, 705510), (39, 560790), (45, 486018), (54, 405015), (62, 352755), (65, 336474), (67, 326430), (78, 280395), (81, 270010), (90, 243009), (93, 235170), (117, 186930), (130, 168237), (134, 163215), (135, 162006), (155, 141102), (162, 135005), (186, 117585), (195, 112158), (201, 108810), (234, 93465), (270, 81003), (279, 78390), (310, 70551), (335, 65286), (351, 62310), (390, 56079), (402, 54405), (403, 54270), (405, 54002), (465, 47034), (558, 39195), (585, 37386), (603, 36270), (670, 32643), (702, 31155), (806, 27135), (810, 27001), (837, 26130), (871, 25110), (930, 23517), (1005, 21762), (1053, 20770), (1170, 18693), (1206, 18135), (1209, 18090), (1395, 15678), (1674, 13065), (1742, 12555), (1755, 12462), (1809, 12090), (2010, 10881), (2015, 10854), (2077, 10530), (2106, 10385), (2418, 9045), (2511, 8710), (2613, 8370), (2790, 7839), (3015, 7254), (3510, 6231), (3618, 6045), (3627, 6030), (4030, 5427), (4154, 5265), (4185, 5226), (4355, 5022)]