21221520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88423}}^1$

素因数の和:88439

約数の個数: 40

約数和(自身を含む): 65787456

約数和(自身を除く): 44565936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88423, 176846, 265269, 353692, 442115, 530538, 707384, 884230, 1061076, 1326345, 1414768, 1768460, 2122152, 2652690, 3536920, 4244304, 5305380, 7073840, 10610760, 21221520]

約数ペア:

[(1, 21221520), (2, 10610760), (3, 7073840), (4, 5305380), (5, 4244304), (6, 3536920), (8, 2652690), (10, 2122152), (12, 1768460), (15, 1414768), (16, 1326345), (20, 1061076), (24, 884230), (30, 707384), (40, 530538), (48, 442115), (60, 353692), (80, 265269), (120, 176846), (240, 88423)]