20653424

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:749

約数の個数: 40

約数和(自身を含む): 43925760

約数和(自身を除く): 23272336

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 239, 478, 491, 956, 982, 1912, 1964, 2629, 3824, 3928, 5258, 5401, 7856, 10516, 10802, 21032, 21604, 42064, 43208, 86416, 117349, 234698, 469396, 938792, 1290839, 1877584, 2581678, 5163356, 10326712, 20653424]

約数ペア:

[(1, 20653424), (2, 10326712), (4, 5163356), (8, 2581678), (11, 1877584), (16, 1290839), (22, 938792), (44, 469396), (88, 234698), (176, 117349), (239, 86416), (478, 43208), (491, 42064), (956, 21604), (982, 21032), (1912, 10802), (1964, 10516), (2629, 7856), (3824, 5401), (3928, 5258)]