18563216

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1549}}^1$

素因数の和:1671

約数の個数: 40

約数和(自身を含む): 41515200

約数和(自身を除く): 22951984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1549, 1712, 2996, 3098, 5992, 6196, 10843, 11984, 12392, 21686, 24784, 43372, 86744, 165743, 173488, 331486, 662972, 1160201, 1325944, 2320402, 2651888, 4640804, 9281608, 18563216]

約数ペア:

[(1, 18563216), (2, 9281608), (4, 4640804), (7, 2651888), (8, 2320402), (14, 1325944), (16, 1160201), (28, 662972), (56, 331486), (107, 173488), (112, 165743), (214, 86744), (428, 43372), (749, 24784), (856, 21686), (1498, 12392), (1549, 11984), (1712, 10843), (2996, 6196), (3098, 5992)]