21368548

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{443}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 38787840

約数和(自身を除く): 17419292

約数列:

[1, 2, 4, 31, 62, 124, 389, 443, 778, 886, 1556, 1772, 12059, 13733, 24118, 27466, 48236, 54932, 172327, 344654, 689308, 5342137, 10684274, 21368548]

約数ペア:

[(1, 21368548), (2, 10684274), (4, 5342137), (31, 689308), (62, 344654), (124, 172327), (389, 54932), (443, 48236), (778, 27466), (886, 24118), (1556, 13733), (1772, 12059)]