21781158999

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1\times {\mathrm{8923}}^1$

素因数の和:11047

約数の個数: 32

約数和(自身を含む): 32105839104

約数和(自身を除く): 10324680105

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 2081, 6243, 8923, 26769, 35377, 47863, 106131, 143589, 151691, 205229, 455073, 615687, 813671, 2441013, 3488893, 10466679, 18568763, 55706289, 315668971, 427081549, 947006913, 1281244647, 7260386333, 21781158999]

約数ペア:

[(1, 21781158999), (3, 7260386333), (17, 1281244647), (23, 947006913), (51, 427081549), (69, 315668971), (391, 55706289), (1173, 18568763), (2081, 10466679), (6243, 3488893), (8923, 2441013), (26769, 813671), (35377, 615687), (47863, 455073), (106131, 205229), (143589, 151691)]