21930920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49843}}^1$

素因数の和:49865

約数の個数: 32

約数和(自身を含む): 53831520

約数和(自身を除く): 31900600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49843, 99686, 199372, 249215, 398744, 498430, 548273, 996860, 1096546, 1993720, 2193092, 2741365, 4386184, 5482730, 10965460, 21930920]

約数ペア:

[(1, 21930920), (2, 10965460), (4, 5482730), (5, 4386184), (8, 2741365), (10, 2193092), (11, 1993720), (20, 1096546), (22, 996860), (40, 548273), (44, 498430), (55, 398744), (88, 249215), (110, 199372), (220, 99686), (440, 49843)]