20796464

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7691}}^1$

素因数の和:7725

約数の個数: 30

約数和(自身を含む): 43636716

約数和(自身を除く): 22840252

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7691, 15382, 30764, 61528, 99983, 123056, 199966, 399932, 799864, 1299779, 1599728, 2599558, 5199116, 10398232, 20796464]

約数ペア:

[(1, 20796464), (2, 10398232), (4, 5199116), (8, 2599558), (13, 1599728), (16, 1299779), (26, 799864), (52, 399932), (104, 199966), (169, 123056), (208, 99983), (338, 61528), (676, 30764), (1352, 15382), (2704, 7691)]