21793750

素因数分解:

$2^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{317}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 44715888

約数和(自身を除く): 22922138

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 317, 550, 625, 634, 1250, 1375, 1585, 2750, 3125, 3170, 3487, 6250, 6875, 6974, 7925, 13750, 15850, 17435, 34375, 34870, 39625, 68750, 79250, 87175, 174350, 198125, 396250, 435875, 871750, 990625, 1981250, 2179375, 4358750, 10896875, 21793750]

約数ペア:

[(1, 21793750), (2, 10896875), (5, 4358750), (10, 2179375), (11, 1981250), (22, 990625), (25, 871750), (50, 435875), (55, 396250), (110, 198125), (125, 174350), (250, 87175), (275, 79250), (317, 68750), (550, 39625), (625, 34870), (634, 34375), (1250, 17435), (1375, 15850), (1585, 13750), (2750, 7925), (3125, 6974), (3170, 6875), (3487, 6250)]