21493395845

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{3583}}^1\times {\mathrm{27901}}^1$

素因数の和:31532

約数の個数: 16

約数和(自身を含む): 26400202752

約数和(自身を除く): 4906806907

約数列:

[1, 5, 43, 215, 3583, 17915, 27901, 139505, 154069, 770345, 1199743, 5998715, 99969283, 499846415, 4298679169, 21493395845]

約数ペア:

[(1, 21493395845), (5, 4298679169), (43, 499846415), (215, 99969283), (3583, 5998715), (17915, 1199743), (27901, 770345), (139505, 154069)]