18987804

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^2\times {\mathrm{1453}}^1$

素因数の和:1488

約数の個数: 72

約数和(自身を含む): 54146960

約数和(自身を除く): 35159156

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 121, 132, 198, 242, 297, 363, 396, 484, 594, 726, 1089, 1188, 1452, 1453, 2178, 2906, 3267, 4356, 4359, 5812, 6534, 8718, 13068, 13077, 15983, 17436, 26154, 31966, 39231, 47949, 52308, 63932, 78462, 95898, 143847, 156924, 175813, 191796, 287694, 351626, 431541, 527439, 575388, 703252, 863082, 1054878, 1582317, 1726164, 2109756, 3164634, 4746951, 6329268, 9493902, 18987804]

約数ペア:

[(1, 18987804), (2, 9493902), (3, 6329268), (4, 4746951), (6, 3164634), (9, 2109756), (11, 1726164), (12, 1582317), (18, 1054878), (22, 863082), (27, 703252), (33, 575388), (36, 527439), (44, 431541), (54, 351626), (66, 287694), (99, 191796), (108, 175813), (121, 156924), (132, 143847), (198, 95898), (242, 78462), (297, 63932), (363, 52308), (396, 47949), (484, 39231), (594, 31966), (726, 26154), (1089, 17436), (1188, 15983), (1452, 13077), (1453, 13068), (2178, 8718), (2906, 6534), (3267, 5812), (4356, 4359)]