18821958

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 42550272

約数和(自身を除く): 23728314

約数列:

[1, 2, 3, 6, 17, 23, 34, 46, 51, 69, 71, 102, 113, 138, 142, 213, 226, 339, 391, 426, 678, 782, 1173, 1207, 1633, 1921, 2346, 2414, 2599, 3266, 3621, 3842, 4899, 5198, 5763, 7242, 7797, 8023, 9798, 11526, 15594, 16046, 24069, 27761, 44183, 48138, 55522, 83283, 88366, 132549, 136391, 166566, 184529, 265098, 272782, 369058, 409173, 553587, 818346, 1107174, 3136993, 6273986, 9410979, 18821958]

約数ペア:

[(1, 18821958), (2, 9410979), (3, 6273986), (6, 3136993), (17, 1107174), (23, 818346), (34, 553587), (46, 409173), (51, 369058), (69, 272782), (71, 265098), (102, 184529), (113, 166566), (138, 136391), (142, 132549), (213, 88366), (226, 83283), (339, 55522), (391, 48138), (426, 44183), (678, 27761), (782, 24069), (1173, 16046), (1207, 15594), (1633, 11526), (1921, 9798), (2346, 8023), (2414, 7797), (2599, 7242), (3266, 5763), (3621, 5198), (3842, 4899)]