18081308

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 38406144

約数和(自身を除く): 20324836

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 62, 74, 124, 148, 217, 259, 434, 518, 563, 868, 1036, 1126, 1147, 2252, 2294, 3941, 4588, 7882, 8029, 15764, 16058, 17453, 20831, 32116, 34906, 41662, 69812, 83324, 122171, 145817, 244342, 291634, 488684, 583268, 645761, 1291522, 2583044, 4520327, 9040654, 18081308]

約数ペア:

[(1, 18081308), (2, 9040654), (4, 4520327), (7, 2583044), (14, 1291522), (28, 645761), (31, 583268), (37, 488684), (62, 291634), (74, 244342), (124, 145817), (148, 122171), (217, 83324), (259, 69812), (434, 41662), (518, 34906), (563, 32116), (868, 20831), (1036, 17453), (1126, 16058), (1147, 15764), (2252, 8029), (2294, 7882), (3941, 4588)]