19555863876

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{997}}^1\times {\mathrm{12671}}^1$

素因数の和:13721

約数の個数: 72

約数和(自身を含む): 50637210624

約数和(自身を除く): 31081346748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 997, 1548, 1994, 2991, 3988, 5982, 8973, 11964, 12671, 17946, 25342, 35892, 38013, 42871, 50684, 76026, 85742, 114039, 128613, 152052, 171484, 228078, 257226, 385839, 456156, 514452, 544853, 771678, 1089706, 1543356, 1634559, 2179412, 3269118, 4903677, 6538236, 9807354, 12632987, 19614708, 25265974, 37898961, 50531948, 75797922, 113696883, 151595844, 227393766, 454787532, 543218441, 1086436882, 1629655323, 2172873764, 3259310646, 4888965969, 6518621292, 9777931938, 19555863876]

約数ペア:

[(1, 19555863876), (2, 9777931938), (3, 6518621292), (4, 4888965969), (6, 3259310646), (9, 2172873764), (12, 1629655323), (18, 1086436882), (36, 543218441), (43, 454787532), (86, 227393766), (129, 151595844), (172, 113696883), (258, 75797922), (387, 50531948), (516, 37898961), (774, 25265974), (997, 19614708), (1548, 12632987), (1994, 9807354), (2991, 6538236), (3988, 4903677), (5982, 3269118), (8973, 2179412), (11964, 1634559), (12671, 1543356), (17946, 1089706), (25342, 771678), (35892, 544853), (38013, 514452), (42871, 456156), (50684, 385839), (76026, 257226), (85742, 228078), (114039, 171484), (128613, 152052)]