21806200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8387}}^1$

素因数の和:8416

約数の個数: 48

約数和(自身を含む): 54605880

約数和(自身を除く): 32799680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8387, 16774, 33548, 41935, 67096, 83870, 109031, 167740, 209675, 218062, 335480, 419350, 436124, 545155, 838700, 872248, 1090310, 1677400, 2180620, 2725775, 4361240, 5451550, 10903100, 21806200]

約数ペア:

[(1, 21806200), (2, 10903100), (4, 5451550), (5, 4361240), (8, 2725775), (10, 2180620), (13, 1677400), (20, 1090310), (25, 872248), (26, 838700), (40, 545155), (50, 436124), (52, 419350), (65, 335480), (100, 218062), (104, 209675), (130, 167740), (200, 109031), (260, 83870), (325, 67096), (520, 41935), (650, 33548), (1300, 16774), (2600, 8387)]