21069960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2558

約数の個数: 64

約数和(自身を含む): 64126080

約数和(自身を除く): 43056120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2473, 2840, 4260, 4946, 7419, 8520, 9892, 12365, 14838, 19784, 24730, 29676, 37095, 49460, 59352, 74190, 98920, 148380, 175583, 296760, 351166, 526749, 702332, 877915, 1053498, 1404664, 1755830, 2106996, 2633745, 3511660, 4213992, 5267490, 7023320, 10534980, 21069960]

約数ペア:

[(1, 21069960), (2, 10534980), (3, 7023320), (4, 5267490), (5, 4213992), (6, 3511660), (8, 2633745), (10, 2106996), (12, 1755830), (15, 1404664), (20, 1053498), (24, 877915), (30, 702332), (40, 526749), (60, 351166), (71, 296760), (120, 175583), (142, 148380), (213, 98920), (284, 74190), (355, 59352), (426, 49460), (568, 37095), (710, 29676), (852, 24730), (1065, 19784), (1420, 14838), (1704, 12365), (2130, 9892), (2473, 8520), (2840, 7419), (4260, 4946)]