421567497

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1109}}^1$

素因数の和:1172

約数の個数: 60

約数和(自身を含む): 716409540

約数和(自身を除く): 294842043

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 361, 513, 741, 1053, 1083, 1109, 1539, 2223, 3249, 3327, 4693, 6669, 9747, 9981, 14079, 14417, 20007, 21071, 29241, 29943, 42237, 43251, 63213, 89829, 126711, 129753, 189639, 273923, 380133, 389259, 400349, 568917, 821769, 1167777, 1201047, 1706751, 2465307, 3603141, 5204537, 7395921, 10809423, 15613611, 22187763, 32428269, 46840833, 140522499, 421567497]

約数ペア:

[(1, 421567497), (3, 140522499), (9, 46840833), (13, 32428269), (19, 22187763), (27, 15613611), (39, 10809423), (57, 7395921), (81, 5204537), (117, 3603141), (171, 2465307), (247, 1706751), (351, 1201047), (361, 1167777), (513, 821769), (741, 568917), (1053, 400349), (1083, 389259), (1109, 380133), (1539, 273923), (2223, 189639), (3249, 129753), (3327, 126711), (4693, 89829), (6669, 63213), (9747, 43251), (9981, 42237), (14079, 29943), (14417, 29241), (20007, 21071)]