21209438

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 34927200

約数和(自身を除く): 13717762

約数列:

[1, 2, 17, 34, 59, 97, 109, 118, 194, 218, 1003, 1649, 1853, 2006, 3298, 3706, 5723, 6431, 10573, 11446, 12862, 21146, 97291, 109327, 179741, 194582, 218654, 359482, 623807, 1247614, 10604719, 21209438]

約数ペア:

[(1, 21209438), (2, 10604719), (17, 1247614), (34, 623807), (59, 359482), (97, 218654), (109, 194582), (118, 179741), (194, 109327), (218, 97291), (1003, 21146), (1649, 12862), (1853, 11446), (2006, 10573), (3298, 6431), (3706, 5723)]