21842480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24821}}^1$

素因数の和:24845

約数の個数: 40

約数和(自身を含む): 55402704

約数和(自身を除く): 33560224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24821, 49642, 99284, 124105, 198568, 248210, 273031, 397136, 496420, 546062, 992840, 1092124, 1365155, 1985680, 2184248, 2730310, 4368496, 5460620, 10921240, 21842480]

約数ペア:

[(1, 21842480), (2, 10921240), (4, 5460620), (5, 4368496), (8, 2730310), (10, 2184248), (11, 1985680), (16, 1365155), (20, 1092124), (22, 992840), (40, 546062), (44, 496420), (55, 397136), (80, 273031), (88, 248210), (110, 198568), (176, 124105), (220, 99284), (440, 49642), (880, 24821)]