18439984

素因数分解:

$2^4\times {\mathrm{947}}^1\times {\mathrm{1217}}^1$

素因数の和:2172

約数の個数: 20

約数和(自身を含む): 35794584

約数和(自身を除く): 17354600

約数列:

[1, 2, 4, 8, 16, 947, 1217, 1894, 2434, 3788, 4868, 7576, 9736, 15152, 19472, 1152499, 2304998, 4609996, 9219992, 18439984]

約数ペア:

[(1, 18439984), (2, 9219992), (4, 4609996), (8, 2304998), (16, 1152499), (947, 19472), (1217, 15152), (1894, 9736), (2434, 7576), (3788, 4868)]