21093705

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24671}}^1$

素因数の和:24701

約数の個数: 24

約数和(自身を含む): 38488320

約数和(自身を除く): 17394615

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24671, 74013, 123355, 222039, 370065, 468749, 1110195, 1406247, 2343745, 4218741, 7031235, 21093705]

約数ペア:

[(1, 21093705), (3, 7031235), (5, 4218741), (9, 2343745), (15, 1406247), (19, 1110195), (45, 468749), (57, 370065), (95, 222039), (171, 123355), (285, 74013), (855, 24671)]