21157516

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1523}}^1$

素因数の和:1701

約数の個数: 24

約数和(自身を含む): 38916864

約数和(自身を除く): 17759348

約数列:

[1, 2, 4, 23, 46, 92, 151, 302, 604, 1523, 3046, 3473, 6092, 6946, 13892, 35029, 70058, 140116, 229973, 459946, 919892, 5289379, 10578758, 21157516]

約数ペア:

[(1, 21157516), (2, 10578758), (4, 5289379), (23, 919892), (46, 459946), (92, 229973), (151, 140116), (302, 70058), (604, 35029), (1523, 13892), (3046, 6946), (3473, 6092)]