19947902

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{45131}}^1$

素因数の和:45163

約数の個数: 16

約数和(自身を含む): 34119792

約数和(自身を除く): 14171890

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 45131, 90262, 586703, 767227, 1173406, 1534454, 9973951, 19947902]

約数ペア:

[(1, 19947902), (2, 9973951), (13, 1534454), (17, 1173406), (26, 767227), (34, 586703), (221, 90262), (442, 45131)]