18998118

素因数分解:

$2^1\times 3^3\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 25065882

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 67, 89, 118, 134, 177, 178, 201, 267, 354, 402, 531, 534, 603, 801, 1062, 1206, 1593, 1602, 1809, 2403, 3186, 3618, 3953, 4806, 5251, 5963, 7906, 10502, 11859, 11926, 15753, 17889, 23718, 31506, 35577, 35778, 47259, 53667, 71154, 94518, 106731, 107334, 141777, 161001, 213462, 283554, 322002, 351817, 703634, 1055451, 2110902, 3166353, 6332706, 9499059, 18998118]

約数ペア:

[(1, 18998118), (2, 9499059), (3, 6332706), (6, 3166353), (9, 2110902), (18, 1055451), (27, 703634), (54, 351817), (59, 322002), (67, 283554), (89, 213462), (118, 161001), (134, 141777), (177, 107334), (178, 106731), (201, 94518), (267, 71154), (354, 53667), (402, 47259), (531, 35778), (534, 35577), (603, 31506), (801, 23718), (1062, 17889), (1206, 15753), (1593, 11926), (1602, 11859), (1809, 10502), (2403, 7906), (3186, 5963), (3618, 5251), (3953, 4806)]