20892016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 42429824

約数和(自身を除く): 21537808

約数列:

[1, 2, 4, 8, 16, 31, 62, 73, 124, 146, 248, 292, 496, 577, 584, 1154, 1168, 2263, 2308, 4526, 4616, 9052, 9232, 17887, 18104, 35774, 36208, 42121, 71548, 84242, 143096, 168484, 286192, 336968, 673936, 1305751, 2611502, 5223004, 10446008, 20892016]

約数ペア:

[(1, 20892016), (2, 10446008), (4, 5223004), (8, 2611502), (16, 1305751), (31, 673936), (62, 336968), (73, 286192), (124, 168484), (146, 143096), (248, 84242), (292, 71548), (496, 42121), (577, 36208), (584, 35774), (1154, 18104), (1168, 17887), (2263, 9232), (2308, 9052), (4526, 4616)]