21710480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24671}}^1$

素因数の和:24695

約数の個数: 40

約数和(自身を含む): 55067904

約数和(自身を除く): 33357424

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24671, 49342, 98684, 123355, 197368, 246710, 271381, 394736, 493420, 542762, 986840, 1085524, 1356905, 1973680, 2171048, 2713810, 4342096, 5427620, 10855240, 21710480]

約数ペア:

[(1, 21710480), (2, 10855240), (4, 5427620), (5, 4342096), (8, 2713810), (10, 2171048), (11, 1973680), (16, 1356905), (20, 1085524), (22, 986840), (40, 542762), (44, 493420), (55, 394736), (80, 271381), (88, 246710), (110, 197368), (176, 123355), (220, 98684), (440, 49342), (880, 24671)]