21330270

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 41568930

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 59, 65, 78, 90, 103, 117, 118, 130, 135, 177, 195, 206, 234, 270, 295, 309, 351, 354, 390, 515, 531, 585, 590, 618, 702, 767, 885, 927, 1030, 1062, 1170, 1339, 1534, 1545, 1593, 1755, 1770, 1854, 2301, 2655, 2678, 2781, 3090, 3186, 3510, 3835, 4017, 4602, 4635, 5310, 5562, 6077, 6695, 6903, 7670, 7965, 8034, 9270, 11505, 12051, 12154, 13390, 13806, 13905, 15930, 18231, 20085, 20709, 23010, 24102, 27810, 30385, 34515, 36153, 36462, 40170, 41418, 54693, 60255, 60770, 69030, 72306, 79001, 91155, 103545, 109386, 120510, 158002, 164079, 180765, 182310, 207090, 237003, 273465, 328158, 361530, 395005, 474006, 546930, 711009, 790010, 820395, 1185015, 1422018, 1640790, 2133027, 2370030, 3555045, 4266054, 7110090, 10665135, 21330270]

約数ペア:

[(1, 21330270), (2, 10665135), (3, 7110090), (5, 4266054), (6, 3555045), (9, 2370030), (10, 2133027), (13, 1640790), (15, 1422018), (18, 1185015), (26, 820395), (27, 790010), (30, 711009), (39, 546930), (45, 474006), (54, 395005), (59, 361530), (65, 328158), (78, 273465), (90, 237003), (103, 207090), (117, 182310), (118, 180765), (130, 164079), (135, 158002), (177, 120510), (195, 109386), (206, 103545), (234, 91155), (270, 79001), (295, 72306), (309, 69030), (351, 60770), (354, 60255), (390, 54693), (515, 41418), (531, 40170), (585, 36462), (590, 36153), (618, 34515), (702, 30385), (767, 27810), (885, 24102), (927, 23010), (1030, 20709), (1062, 20085), (1170, 18231), (1339, 15930), (1534, 13905), (1545, 13806), (1593, 13390), (1755, 12154), (1770, 12051), (1854, 11505), (2301, 9270), (2655, 8034), (2678, 7965), (2781, 7670), (3090, 6903), (3186, 6695), (3510, 6077), (3835, 5562), (4017, 5310), (4602, 4635)]