20903625

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{1093}}^1$

素因数の和:1131

約数の個数: 48

約数和(自身を含む): 39935376

約数和(自身を除く): 19031751

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 225, 255, 375, 425, 765, 1093, 1125, 1275, 2125, 3279, 3825, 5465, 6375, 9837, 16395, 18581, 19125, 27325, 49185, 55743, 81975, 92905, 136625, 167229, 245925, 278715, 409875, 464525, 836145, 1229625, 1393575, 2322625, 4180725, 6967875, 20903625]

約数ペア:

[(1, 20903625), (3, 6967875), (5, 4180725), (9, 2322625), (15, 1393575), (17, 1229625), (25, 836145), (45, 464525), (51, 409875), (75, 278715), (85, 245925), (125, 167229), (153, 136625), (225, 92905), (255, 81975), (375, 55743), (425, 49185), (765, 27325), (1093, 19125), (1125, 18581), (1275, 16395), (2125, 9837), (3279, 6375), (3825, 5465)]