21665720450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{164821}}^1$

素因数の和:165083

約数の個数: 48

約数和(自身を含む): 44145924480

約数和(自身を除く): 22480204030

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 239, 275, 478, 550, 1195, 2390, 2629, 5258, 5975, 11950, 13145, 26290, 65725, 131450, 164821, 329642, 824105, 1648210, 1813031, 3626062, 4120525, 8241050, 9065155, 18130310, 39392219, 45325775, 78784438, 90651550, 196961095, 393922190, 433314409, 866628818, 984805475, 1969610950, 2166572045, 4333144090, 10832860225, 21665720450]

約数ペア:

[(1, 21665720450), (2, 10832860225), (5, 4333144090), (10, 2166572045), (11, 1969610950), (22, 984805475), (25, 866628818), (50, 433314409), (55, 393922190), (110, 196961095), (239, 90651550), (275, 78784438), (478, 45325775), (550, 39392219), (1195, 18130310), (2390, 9065155), (2629, 8241050), (5258, 4120525), (5975, 3626062), (11950, 1813031), (13145, 1648210), (26290, 824105), (65725, 329642), (131450, 164821)]