21369712

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1129}}^1$

素因数の和:1170

約数の個数: 60

約数和(自身を含む): 51283920

約数和(自身を除く): 29914208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 182, 208, 338, 364, 676, 728, 1129, 1183, 1352, 1456, 2258, 2366, 2704, 4516, 4732, 7903, 9032, 9464, 14677, 15806, 18064, 18928, 29354, 31612, 58708, 63224, 102739, 117416, 126448, 190801, 205478, 234832, 381602, 410956, 763204, 821912, 1335607, 1526408, 1643824, 2671214, 3052816, 5342428, 10684856, 21369712]

約数ペア:

[(1, 21369712), (2, 10684856), (4, 5342428), (7, 3052816), (8, 2671214), (13, 1643824), (14, 1526408), (16, 1335607), (26, 821912), (28, 763204), (52, 410956), (56, 381602), (91, 234832), (104, 205478), (112, 190801), (169, 126448), (182, 117416), (208, 102739), (338, 63224), (364, 58708), (676, 31612), (728, 29354), (1129, 18928), (1183, 18064), (1352, 15806), (1456, 14677), (2258, 9464), (2366, 9032), (2704, 7903), (4516, 4732)]