20414121

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:150

約数の個数: 64

約数和(自身を含む): 35954688

約数和(自身を除く): 15540567

約数列:

[1, 3, 7, 13, 21, 37, 39, 43, 47, 91, 111, 129, 141, 259, 273, 301, 329, 481, 559, 611, 777, 903, 987, 1443, 1591, 1677, 1739, 1833, 2021, 3367, 3913, 4277, 4773, 5217, 6063, 10101, 11137, 11739, 12173, 12831, 14147, 20683, 22607, 26273, 33411, 36519, 42441, 62049, 67821, 74777, 78819, 144781, 158249, 183911, 224331, 434343, 474747, 523439, 551733, 972101, 1570317, 2916303, 6804707, 20414121]

約数ペア:

[(1, 20414121), (3, 6804707), (7, 2916303), (13, 1570317), (21, 972101), (37, 551733), (39, 523439), (43, 474747), (47, 434343), (91, 224331), (111, 183911), (129, 158249), (141, 144781), (259, 78819), (273, 74777), (301, 67821), (329, 62049), (481, 42441), (559, 36519), (611, 33411), (777, 26273), (903, 22607), (987, 20683), (1443, 14147), (1591, 12831), (1677, 12173), (1739, 11739), (1833, 11137), (2021, 10101), (3367, 6063), (3913, 5217), (4277, 4773)]