20662928

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:864

約数の個数: 60

約数和(自身を含む): 47447484

約数和(自身を除く): 26784556

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 484, 572, 821, 968, 1144, 1573, 1642, 1936, 2288, 3146, 3284, 6292, 6568, 9031, 10673, 12584, 13136, 18062, 21346, 25168, 36124, 42692, 72248, 85384, 99341, 117403, 144496, 170768, 198682, 234806, 397364, 469612, 794728, 939224, 1291433, 1589456, 1878448, 2582866, 5165732, 10331464, 20662928]

約数ペア:

[(1, 20662928), (2, 10331464), (4, 5165732), (8, 2582866), (11, 1878448), (13, 1589456), (16, 1291433), (22, 939224), (26, 794728), (44, 469612), (52, 397364), (88, 234806), (104, 198682), (121, 170768), (143, 144496), (176, 117403), (208, 99341), (242, 85384), (286, 72248), (484, 42692), (572, 36124), (821, 25168), (968, 21346), (1144, 18062), (1573, 13136), (1642, 12584), (1936, 10673), (2288, 9031), (3146, 6568), (3284, 6292)]