17987955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3067}}^1$

素因数の和:3115

約数の個数: 32

約数和(自身を含む): 31809024

約数和(自身を除く): 13821069

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3067, 5865, 9201, 15335, 46005, 52139, 70541, 156417, 211623, 260695, 352705, 782085, 1058115, 1199197, 3597591, 5995985, 17987955]

約数ペア:

[(1, 17987955), (3, 5995985), (5, 3597591), (15, 1199197), (17, 1058115), (23, 782085), (51, 352705), (69, 260695), (85, 211623), (115, 156417), (255, 70541), (345, 52139), (391, 46005), (1173, 15335), (1955, 9201), (3067, 5865)]