19549420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88861}}^1$

素因数の和:88881

約数の個数: 24

約数和(自身を含む): 44786448

約数和(自身を除く): 25237028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88861, 177722, 355444, 444305, 888610, 977471, 1777220, 1954942, 3909884, 4887355, 9774710, 19549420]

約数ペア:

[(1, 19549420), (2, 9774710), (4, 4887355), (5, 3909884), (10, 1954942), (11, 1777220), (20, 977471), (22, 888610), (44, 444305), (55, 355444), (110, 177722), (220, 88861)]