21545190

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:483

約数の個数: 80

約数和(自身を含む): 58945392

約数和(自身を除く): 37400202

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 67, 81, 90, 134, 135, 162, 201, 270, 335, 397, 402, 405, 603, 670, 794, 810, 1005, 1191, 1206, 1809, 1985, 2010, 2382, 3015, 3573, 3618, 3970, 5427, 5955, 6030, 7146, 9045, 10719, 10854, 11910, 17865, 18090, 21438, 26599, 27135, 32157, 35730, 53198, 53595, 54270, 64314, 79797, 107190, 132995, 159594, 160785, 239391, 265990, 321570, 398985, 478782, 718173, 797970, 1196955, 1436346, 2154519, 2393910, 3590865, 4309038, 7181730, 10772595, 21545190]

約数ペア:

[(1, 21545190), (2, 10772595), (3, 7181730), (5, 4309038), (6, 3590865), (9, 2393910), (10, 2154519), (15, 1436346), (18, 1196955), (27, 797970), (30, 718173), (45, 478782), (54, 398985), (67, 321570), (81, 265990), (90, 239391), (134, 160785), (135, 159594), (162, 132995), (201, 107190), (270, 79797), (335, 64314), (397, 54270), (402, 53595), (405, 53198), (603, 35730), (670, 32157), (794, 27135), (810, 26599), (1005, 21438), (1191, 18090), (1206, 17865), (1809, 11910), (1985, 10854), (2010, 10719), (2382, 9045), (3015, 7146), (3573, 6030), (3618, 5955), (3970, 5427)]