21640108

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 23647316

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 107, 124, 214, 217, 233, 428, 434, 466, 749, 868, 932, 1498, 1631, 2996, 3262, 3317, 6524, 6634, 7223, 13268, 14446, 23219, 24931, 28892, 46438, 49862, 50561, 92876, 99724, 101122, 174517, 202244, 349034, 698068, 772861, 1545722, 3091444, 5410027, 10820054, 21640108]

約数ペア:

[(1, 21640108), (2, 10820054), (4, 5410027), (7, 3091444), (14, 1545722), (28, 772861), (31, 698068), (62, 349034), (107, 202244), (124, 174517), (214, 101122), (217, 99724), (233, 92876), (428, 50561), (434, 49862), (466, 46438), (749, 28892), (868, 24931), (932, 23219), (1498, 14446), (1631, 13268), (2996, 7223), (3262, 6634), (3317, 6524)]