221520848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{728687}}^1$

素因数の和:728714

約数の個数: 20

約数和(自身を含む): 451786560

約数和(自身を除く): 230265712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 728687, 1457374, 2914748, 5829496, 11658992, 13845053, 27690106, 55380212, 110760424, 221520848]

約数ペア:

[(1, 221520848), (2, 110760424), (4, 55380212), (8, 27690106), (16, 13845053), (19, 11658992), (38, 5829496), (76, 2914748), (152, 1457374), (304, 728687)]