18914758

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{787}}^1$

素因数の和:1047

約数の個数: 16

約数和(自身を含む): 29020464

約数和(自身を除く): 10105706

約数列:

[1, 2, 61, 122, 197, 394, 787, 1574, 12017, 24034, 48007, 96014, 155039, 310078, 9457379, 18914758]

約数ペア:

[(1, 18914758), (2, 9457379), (61, 310078), (122, 155039), (197, 96014), (394, 48007), (787, 24034), (1574, 12017)]