21486270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1489}}^1$

素因数の和:1549

約数の個数: 64

約数和(自身を含む): 57072960

約数和(自身を除く): 35586690

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1489, 2405, 2886, 2978, 4467, 4810, 7215, 7445, 8934, 14430, 14890, 19357, 22335, 38714, 44670, 55093, 58071, 96785, 110186, 116142, 165279, 193570, 275465, 290355, 330558, 550930, 580710, 716209, 826395, 1432418, 1652790, 2148627, 3581045, 4297254, 7162090, 10743135, 21486270]

約数ペア:

[(1, 21486270), (2, 10743135), (3, 7162090), (5, 4297254), (6, 3581045), (10, 2148627), (13, 1652790), (15, 1432418), (26, 826395), (30, 716209), (37, 580710), (39, 550930), (65, 330558), (74, 290355), (78, 275465), (111, 193570), (130, 165279), (185, 116142), (195, 110186), (222, 96785), (370, 58071), (390, 55093), (481, 44670), (555, 38714), (962, 22335), (1110, 19357), (1443, 14890), (1489, 14430), (2405, 8934), (2886, 7445), (2978, 7215), (4467, 4810)]