20635736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{557}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 42385680

約数和(自身を除く): 21749944

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 421, 557, 842, 1114, 1684, 2228, 3368, 4456, 4631, 6127, 9262, 12254, 18524, 24508, 37048, 49016, 234497, 468994, 937988, 1875976, 2579467, 5158934, 10317868, 20635736]

約数ペア:

[(1, 20635736), (2, 10317868), (4, 5158934), (8, 2579467), (11, 1875976), (22, 937988), (44, 468994), (88, 234497), (421, 49016), (557, 37048), (842, 24508), (1114, 18524), (1684, 12254), (2228, 9262), (3368, 6127), (4456, 4631)]