21532257

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 33384960

約数和(自身を除く): 11852703

約数列:

[1, 3, 9, 27, 41, 53, 123, 159, 367, 369, 477, 1101, 1107, 1431, 2173, 3303, 6519, 9909, 15047, 19451, 19557, 45141, 58353, 58671, 135423, 175059, 406269, 525177, 797491, 2392473, 7177419, 21532257]

約数ペア:

[(1, 21532257), (3, 7177419), (9, 2392473), (27, 797491), (41, 525177), (53, 406269), (123, 175059), (159, 135423), (367, 58671), (369, 58353), (477, 45141), (1101, 19557), (1107, 19451), (1431, 15047), (2173, 9909), (3303, 6519)]