19666090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63439}}^1$

素因数の和:63477

約数の個数: 16

約数和(自身を含む): 36541440

約数和(自身を除く): 16875350

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 63439, 126878, 317195, 634390, 1966609, 3933218, 9833045, 19666090]

約数ペア:

[(1, 19666090), (2, 9833045), (5, 3933218), (10, 1966609), (31, 634390), (62, 317195), (155, 126878), (310, 63439)]