21321872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9319}}^1$

素因数の和:9351

約数の個数: 40

約数和(自身を含む): 48538560

約数和(自身を除く): 27216688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9319, 18638, 37276, 74552, 102509, 121147, 149104, 205018, 242294, 410036, 484588, 820072, 969176, 1332617, 1640144, 1938352, 2665234, 5330468, 10660936, 21321872]

約数ペア:

[(1, 21321872), (2, 10660936), (4, 5330468), (8, 2665234), (11, 1938352), (13, 1640144), (16, 1332617), (22, 969176), (26, 820072), (44, 484588), (52, 410036), (88, 242294), (104, 205018), (143, 149104), (176, 121147), (208, 102509), (286, 74552), (572, 37276), (1144, 18638), (2288, 9319)]