21321768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1847}}^1$

素因数の和:1906

約数の個数: 64

約数和(自身を含む): 58988160

約数和(自身を除く): 37666392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 52, 74, 78, 104, 111, 148, 156, 222, 296, 312, 444, 481, 888, 962, 1443, 1847, 1924, 2886, 3694, 3848, 5541, 5772, 7388, 11082, 11544, 14776, 22164, 24011, 44328, 48022, 68339, 72033, 96044, 136678, 144066, 192088, 205017, 273356, 288132, 410034, 546712, 576264, 820068, 888407, 1640136, 1776814, 2665221, 3553628, 5330442, 7107256, 10660884, 21321768]

約数ペア:

[(1, 21321768), (2, 10660884), (3, 7107256), (4, 5330442), (6, 3553628), (8, 2665221), (12, 1776814), (13, 1640136), (24, 888407), (26, 820068), (37, 576264), (39, 546712), (52, 410034), (74, 288132), (78, 273356), (104, 205017), (111, 192088), (148, 144066), (156, 136678), (222, 96044), (296, 72033), (312, 68339), (444, 48022), (481, 44328), (888, 24011), (962, 22164), (1443, 14776), (1847, 11544), (1924, 11082), (2886, 7388), (3694, 5772), (3848, 5541)]