21010250

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{2711}}^1$

素因数の和:2759

約数の個数: 32

約数和(自身を含む): 40614912

約数和(自身を除く): 19604662

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 2711, 3875, 5422, 7750, 13555, 27110, 67775, 84041, 135550, 168082, 338875, 420205, 677750, 840410, 2101025, 4202050, 10505125, 21010250]

約数ペア:

[(1, 21010250), (2, 10505125), (5, 4202050), (10, 2101025), (25, 840410), (31, 677750), (50, 420205), (62, 338875), (125, 168082), (155, 135550), (250, 84041), (310, 67775), (775, 27110), (1550, 13555), (2711, 7750), (3875, 5422)]