18884390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{773}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 20125210

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 349, 698, 773, 1546, 1745, 2443, 3490, 3865, 4886, 5411, 7730, 10822, 12215, 24430, 27055, 54110, 269777, 539554, 1348885, 1888439, 2697770, 3776878, 9442195, 18884390]

約数ペア:

[(1, 18884390), (2, 9442195), (5, 3776878), (7, 2697770), (10, 1888439), (14, 1348885), (35, 539554), (70, 269777), (349, 54110), (698, 27055), (773, 24430), (1546, 12215), (1745, 10822), (2443, 7730), (3490, 5411), (3865, 4886)]