19951421

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 4309699

約数列:

[1, 7, 17, 119, 389, 431, 2723, 3017, 6613, 7327, 46291, 51289, 167659, 1173613, 2850203, 19951421]

約数ペア:

[(1, 19951421), (7, 2850203), (17, 1173613), (119, 167659), (389, 51289), (431, 46291), (2723, 7327), (3017, 6613)]