21771625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:226

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 7431575

約数列:

[1, 5, 19, 25, 89, 95, 103, 125, 445, 475, 515, 1691, 1957, 2225, 2375, 2575, 8455, 9167, 9785, 11125, 12875, 42275, 45835, 48925, 174173, 211375, 229175, 244625, 870865, 1145875, 4354325, 21771625]

約数ペア:

[(1, 21771625), (5, 4354325), (19, 1145875), (25, 870865), (89, 244625), (95, 229175), (103, 211375), (125, 174173), (445, 48925), (475, 45835), (515, 42275), (1691, 12875), (1957, 11125), (2225, 9785), (2375, 9167), (2575, 8455)]