20003728

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12889}}^1$

素因数の和:12994

約数の個数: 20

約数和(自身を含む): 39159820

約数和(自身を除く): 19156092

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12889, 25778, 51556, 103112, 206224, 1250233, 2500466, 5000932, 10001864, 20003728]

約数ペア:

[(1, 20003728), (2, 10001864), (4, 5000932), (8, 2500466), (16, 1250233), (97, 206224), (194, 103112), (388, 51556), (776, 25778), (1552, 12889)]