21992360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{42293}}^1$

素因数の和:42317

約数の個数: 32

約数和(自身を含む): 53290440

約数和(自身を除く): 31298080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 42293, 84586, 169172, 211465, 338344, 422930, 549809, 845860, 1099618, 1691720, 2199236, 2749045, 4398472, 5498090, 10996180, 21992360]

約数ペア:

[(1, 21992360), (2, 10996180), (4, 5498090), (5, 4398472), (8, 2749045), (10, 2199236), (13, 1691720), (20, 1099618), (26, 845860), (40, 549809), (52, 422930), (65, 338344), (104, 211465), (130, 169172), (260, 84586), (520, 42293)]