21380458910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{709607}}^1$

素因数の和:709768

約数の個数: 32

約数和(自身を含む): 40464686592

約数和(自身を除く): 19084227682

約数列:

[1, 2, 5, 10, 23, 46, 115, 131, 230, 262, 655, 1310, 3013, 6026, 15065, 30130, 709607, 1419214, 3548035, 7096070, 16320961, 32641922, 81604805, 92958517, 163209610, 185917034, 464792585, 929585170, 2138045891, 4276091782, 10690229455, 21380458910]

約数ペア:

[(1, 21380458910), (2, 10690229455), (5, 4276091782), (10, 2138045891), (23, 929585170), (46, 464792585), (115, 185917034), (131, 163209610), (230, 92958517), (262, 81604805), (655, 32641922), (1310, 16320961), (3013, 7096070), (6026, 3548035), (15065, 1419214), (30130, 709607)]