20686913744

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1904171}}^1$

素因数の和:1904283

約数の個数: 40

約数和(自身を含む): 46278996288

約数和(自身を除く): 25592082544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 1904171, 3808342, 7616684, 13329197, 15233368, 26658394, 30466736, 53316788, 106633576, 184704587, 213267152, 369409174, 738818348, 1292932109, 1477636696, 2585864218, 2955273392, 5171728436, 10343456872, 20686913744]

約数ペア:

[(1, 20686913744), (2, 10343456872), (4, 5171728436), (7, 2955273392), (8, 2585864218), (14, 1477636696), (16, 1292932109), (28, 738818348), (56, 369409174), (97, 213267152), (112, 184704587), (194, 106633576), (388, 53316788), (679, 30466736), (776, 26658394), (1358, 15233368), (1552, 13329197), (2716, 7616684), (5432, 3808342), (10864, 1904171)]