21245094

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 49965552

約数和(自身を除く): 28720458

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 163, 234, 326, 489, 557, 978, 1114, 1467, 1671, 2119, 2934, 3342, 4238, 5013, 6357, 7241, 10026, 12714, 14482, 19071, 21723, 38142, 43446, 65169, 90791, 130338, 181582, 272373, 544746, 817119, 1180283, 1634238, 2360566, 3540849, 7081698, 10622547, 21245094]

約数ペア:

[(1, 21245094), (2, 10622547), (3, 7081698), (6, 3540849), (9, 2360566), (13, 1634238), (18, 1180283), (26, 817119), (39, 544746), (78, 272373), (117, 181582), (163, 130338), (234, 90791), (326, 65169), (489, 43446), (557, 38142), (978, 21723), (1114, 19071), (1467, 14482), (1671, 12714), (2119, 10026), (2934, 7241), (3342, 6357), (4238, 5013)]