20907638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7537}}^1$

素因数の和:7631

約数の個数: 16

約数和(自身を含む): 33468720

約数和(自身を除く): 12561082

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7537, 15074, 143203, 286406, 550201, 1100402, 10453819, 20907638]

約数ペア:

[(1, 20907638), (2, 10453819), (19, 1100402), (38, 550201), (73, 286406), (146, 143203), (1387, 15074), (2774, 7537)]