21887880190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198980729}}^1$

素因数の和:198980747

約数の個数: 16

約数和(自身を含む): 42979837680

約数和(自身を除く): 21091957490

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198980729, 397961458, 994903645, 1989807290, 2188788019, 4377576038, 10943940095, 21887880190]

約数ペア:

[(1, 21887880190), (2, 10943940095), (5, 4377576038), (10, 2188788019), (11, 1989807290), (22, 994903645), (55, 397961458), (110, 198980729)]