19935917

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 22384512

約数和(自身を除く): 2448595

約数列:

[1, 17, 23, 67, 391, 761, 1139, 1541, 12937, 17503, 26197, 50987, 297551, 866779, 1172701, 19935917]

約数ペア:

[(1, 19935917), (17, 1172701), (23, 866779), (67, 297551), (391, 50987), (761, 26197), (1139, 17503), (1541, 12937)]