20018286

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 27501714

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 109, 114, 171, 179, 218, 327, 342, 358, 513, 537, 654, 981, 1026, 1074, 1611, 1962, 2071, 2943, 3222, 3401, 4142, 4833, 5886, 6213, 6802, 9666, 10203, 12426, 18639, 19511, 20406, 30609, 37278, 39022, 55917, 58533, 61218, 91827, 111834, 117066, 175599, 183654, 351198, 370709, 526797, 741418, 1053594, 1112127, 2224254, 3336381, 6672762, 10009143, 20018286]

約数ペア:

[(1, 20018286), (2, 10009143), (3, 6672762), (6, 3336381), (9, 2224254), (18, 1112127), (19, 1053594), (27, 741418), (38, 526797), (54, 370709), (57, 351198), (109, 183654), (114, 175599), (171, 117066), (179, 111834), (218, 91827), (327, 61218), (342, 58533), (358, 55917), (513, 39022), (537, 37278), (654, 30609), (981, 20406), (1026, 19511), (1074, 18639), (1611, 12426), (1962, 10203), (2071, 9666), (2943, 6802), (3222, 6213), (3401, 5886), (4142, 4833)]