20123983467

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73079}}^1$

素因数の和:73173

約数の個数: 64

約数和(自身を含む): 35920281600

約数和(自身を除く): 15796298133

約数列:

[1, 3, 7, 9, 21, 27, 31, 47, 63, 93, 141, 189, 217, 279, 329, 423, 651, 837, 987, 1269, 1457, 1953, 2961, 4371, 5859, 8883, 10199, 13113, 30597, 39339, 73079, 91791, 219237, 275373, 511553, 657711, 1534659, 1973133, 2265449, 3434713, 4603977, 6796347, 10304139, 13811931, 15858143, 20389041, 24042991, 30912417, 47574429, 61167123, 72128973, 92737251, 106476103, 142723287, 216386919, 319428309, 428169861, 649160757, 745332721, 958284927, 2235998163, 2874854781, 6707994489, 20123983467]

約数ペア:

[(1, 20123983467), (3, 6707994489), (7, 2874854781), (9, 2235998163), (21, 958284927), (27, 745332721), (31, 649160757), (47, 428169861), (63, 319428309), (93, 216386919), (141, 142723287), (189, 106476103), (217, 92737251), (279, 72128973), (329, 61167123), (423, 47574429), (651, 30912417), (837, 24042991), (987, 20389041), (1269, 15858143), (1457, 13811931), (1953, 10304139), (2961, 6796347), (4371, 4603977), (5859, 3434713), (8883, 2265449), (10199, 1973133), (13113, 1534659), (30597, 657711), (39339, 511553), (73079, 275373), (91791, 219237)]