21010108

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12301}}^1$

素因数の和:12373

約数の個数: 24

約数和(自身を含む): 42712544

約数和(自身を除く): 21702436

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12301, 24602, 49204, 86107, 172214, 344428, 750361, 1500722, 3001444, 5252527, 10505054, 21010108]

約数ペア:

[(1, 21010108), (2, 10505054), (4, 5252527), (7, 3001444), (14, 1500722), (28, 750361), (61, 344428), (122, 172214), (244, 86107), (427, 49204), (854, 24602), (1708, 12301)]