18000927

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 14900193

約数列:

[1, 3, 7, 9, 21, 23, 27, 41, 63, 69, 101, 123, 161, 189, 207, 287, 303, 369, 483, 621, 707, 861, 909, 943, 1107, 1449, 2121, 2323, 2583, 2727, 2829, 4141, 4347, 6363, 6601, 6969, 7749, 8487, 12423, 16261, 19089, 19803, 20907, 25461, 28987, 37269, 48783, 59409, 62721, 86961, 95243, 111807, 146349, 178227, 260883, 285729, 439047, 666701, 782649, 857187, 2000103, 2571561, 6000309, 18000927]

約数ペア:

[(1, 18000927), (3, 6000309), (7, 2571561), (9, 2000103), (21, 857187), (23, 782649), (27, 666701), (41, 439047), (63, 285729), (69, 260883), (101, 178227), (123, 146349), (161, 111807), (189, 95243), (207, 86961), (287, 62721), (303, 59409), (369, 48783), (483, 37269), (621, 28987), (707, 25461), (861, 20907), (909, 19803), (943, 19089), (1107, 16261), (1449, 12423), (2121, 8487), (2323, 7749), (2583, 6969), (2727, 6601), (2829, 6363), (4141, 4347)]