21297016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4357}}^1$

素因数の和:4423

約数の個数: 32

約数和(自身を含む): 43928640

約数和(自身を除く): 22631624

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4357, 4888, 8714, 17428, 34856, 56641, 113282, 204779, 226564, 409558, 453128, 819116, 1638232, 2662127, 5324254, 10648508, 21297016]

約数ペア:

[(1, 21297016), (2, 10648508), (4, 5324254), (8, 2662127), (13, 1638232), (26, 819116), (47, 453128), (52, 409558), (94, 226564), (104, 204779), (188, 113282), (376, 56641), (611, 34856), (1222, 17428), (2444, 8714), (4357, 4888)]