20973728

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 43341480

約数和(自身を除く): 22367752

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 97, 116, 194, 232, 233, 388, 464, 466, 776, 928, 932, 1552, 1864, 2813, 3104, 3728, 5626, 6757, 7456, 11252, 13514, 22504, 22601, 27028, 45008, 45202, 54056, 90016, 90404, 108112, 180808, 216224, 361616, 655429, 723232, 1310858, 2621716, 5243432, 10486864, 20973728]

約数ペア:

[(1, 20973728), (2, 10486864), (4, 5243432), (8, 2621716), (16, 1310858), (29, 723232), (32, 655429), (58, 361616), (97, 216224), (116, 180808), (194, 108112), (232, 90404), (233, 90016), (388, 54056), (464, 45202), (466, 45008), (776, 27028), (928, 22601), (932, 22504), (1552, 13514), (1864, 11252), (2813, 7456), (3104, 6757), (3728, 5626)]