19816639

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 21991680

約数和(自身を除く): 2175041

約数列:

[1, 19, 23, 137, 331, 437, 2603, 3151, 6289, 7613, 45347, 59869, 144647, 861593, 1042981, 19816639]

約数ペア:

[(1, 19816639), (19, 1042981), (23, 861593), (137, 144647), (331, 59869), (437, 45347), (2603, 7613), (3151, 6289)]