17972895

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 30182400

約数和(自身を除く): 12209505

約数列:

[1, 3, 5, 15, 29, 79, 87, 145, 237, 395, 435, 523, 1185, 1569, 2291, 2615, 6873, 7845, 11455, 15167, 34365, 41317, 45501, 75835, 123951, 206585, 227505, 619755, 1198193, 3594579, 5990965, 17972895]

約数ペア:

[(1, 17972895), (3, 5990965), (5, 3594579), (15, 1198193), (29, 619755), (79, 227505), (87, 206585), (145, 123951), (237, 75835), (395, 45501), (435, 41317), (523, 34365), (1185, 15167), (1569, 11455), (2291, 7845), (2615, 6873)]