18988668

素因数分解:

$2^2\times 3^4\times {\mathrm{103}}^1\times {\mathrm{569}}^1$

素因数の和:688

約数の個数: 60

約数和(自身を含む): 50210160

約数和(自身を除く): 31221492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 103, 108, 162, 206, 309, 324, 412, 569, 618, 927, 1138, 1236, 1707, 1854, 2276, 2781, 3414, 3708, 5121, 5562, 6828, 8343, 10242, 11124, 15363, 16686, 20484, 30726, 33372, 46089, 58607, 61452, 92178, 117214, 175821, 184356, 234428, 351642, 527463, 703284, 1054926, 1582389, 2109852, 3164778, 4747167, 6329556, 9494334, 18988668]

約数ペア:

[(1, 18988668), (2, 9494334), (3, 6329556), (4, 4747167), (6, 3164778), (9, 2109852), (12, 1582389), (18, 1054926), (27, 703284), (36, 527463), (54, 351642), (81, 234428), (103, 184356), (108, 175821), (162, 117214), (206, 92178), (309, 61452), (324, 58607), (412, 46089), (569, 33372), (618, 30726), (927, 20484), (1138, 16686), (1236, 15363), (1707, 11124), (1854, 10242), (2276, 8343), (2781, 6828), (3414, 5562), (3708, 5121)]