19815974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{811}}^1$

素因数の和:1475

約数の個数: 16

約数和(自身を含む): 31375680

約数和(自身を除く): 11559706

約数列:

[1, 2, 19, 38, 643, 811, 1286, 1622, 12217, 15409, 24434, 30818, 521473, 1042946, 9907987, 19815974]

約数ペア:

[(1, 19815974), (2, 9907987), (19, 1042946), (38, 521473), (643, 30818), (811, 24434), (1286, 15409), (1622, 12217)]