21645868

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1483}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 39266640

約数和(自身を除く): 17620772

約数列:

[1, 2, 4, 41, 82, 89, 164, 178, 356, 1483, 2966, 3649, 5932, 7298, 14596, 60803, 121606, 131987, 243212, 263974, 527948, 5411467, 10822934, 21645868]

約数ペア:

[(1, 21645868), (2, 10822934), (4, 5411467), (41, 527948), (82, 263974), (89, 243212), (164, 131987), (178, 121606), (356, 60803), (1483, 14596), (2966, 7298), (3649, 5932)]