21177846

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 47511360

約数和(自身を除く): 26333514

約数列:

[1, 2, 3, 6, 9, 18, 53, 79, 106, 158, 159, 237, 281, 318, 474, 477, 562, 711, 843, 954, 1422, 1686, 2529, 4187, 5058, 8374, 12561, 14893, 22199, 25122, 29786, 37683, 44398, 44679, 66597, 75366, 89358, 133194, 134037, 199791, 268074, 399582, 1176547, 2353094, 3529641, 7059282, 10588923, 21177846]

約数ペア:

[(1, 21177846), (2, 10588923), (3, 7059282), (6, 3529641), (9, 2353094), (18, 1176547), (53, 399582), (79, 268074), (106, 199791), (158, 134037), (159, 133194), (237, 89358), (281, 75366), (318, 66597), (474, 44679), (477, 44398), (562, 37683), (711, 29786), (843, 25122), (954, 22199), (1422, 14893), (1686, 12561), (2529, 8374), (4187, 5058)]