21065374

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{1427}}^1$

素因数の和:1512

約数の個数: 24

約数和(自身を含む): 35325864

約数和(自身を除く): 14260490

約数列:

[1, 2, 11, 22, 61, 121, 122, 242, 671, 1342, 1427, 2854, 7381, 14762, 15697, 31394, 87047, 172667, 174094, 345334, 957517, 1915034, 10532687, 21065374]

約数ペア:

[(1, 21065374), (2, 10532687), (11, 1915034), (22, 957517), (61, 345334), (121, 174094), (122, 172667), (242, 87047), (671, 31394), (1342, 15697), (1427, 14762), (2854, 7381)]