21266010

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1092

約数の個数: 64

約数和(自身を含む): 57484800

約数和(自身を除く): 36218790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 90, 135, 158, 237, 270, 395, 474, 711, 790, 997, 1185, 1422, 1994, 2133, 2370, 2991, 3555, 4266, 4985, 5982, 7110, 8973, 9970, 10665, 14955, 17946, 21330, 26919, 29910, 44865, 53838, 78763, 89730, 134595, 157526, 236289, 269190, 393815, 472578, 708867, 787630, 1181445, 1417734, 2126601, 2362890, 3544335, 4253202, 7088670, 10633005, 21266010]

約数ペア:

[(1, 21266010), (2, 10633005), (3, 7088670), (5, 4253202), (6, 3544335), (9, 2362890), (10, 2126601), (15, 1417734), (18, 1181445), (27, 787630), (30, 708867), (45, 472578), (54, 393815), (79, 269190), (90, 236289), (135, 157526), (158, 134595), (237, 89730), (270, 78763), (395, 53838), (474, 44865), (711, 29910), (790, 26919), (997, 21330), (1185, 17946), (1422, 14955), (1994, 10665), (2133, 9970), (2370, 8973), (2991, 7110), (3555, 5982), (4266, 4985)]