21185750

素因数分解:

$2^1\times 5^3\times {\mathrm{83}}^1\times {\mathrm{1021}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 40176864

約数和(自身を除く): 18991114

約数列:

[1, 2, 5, 10, 25, 50, 83, 125, 166, 250, 415, 830, 1021, 2042, 2075, 4150, 5105, 10210, 10375, 20750, 25525, 51050, 84743, 127625, 169486, 255250, 423715, 847430, 2118575, 4237150, 10592875, 21185750]

約数ペア:

[(1, 21185750), (2, 10592875), (5, 4237150), (10, 2118575), (25, 847430), (50, 423715), (83, 255250), (125, 169486), (166, 127625), (250, 84743), (415, 51050), (830, 25525), (1021, 20750), (2042, 10375), (2075, 10210), (4150, 5105)]