18678016

素因数分解:

$2^8\times 7^2\times {\mathrm{1489}}^1$

素因数の和:1519

約数の個数: 54

約数和(自身を含む): 43399230

約数和(自身を除く): 24721214

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1489, 1568, 1792, 2978, 3136, 5956, 6272, 10423, 11912, 12544, 20846, 23824, 41692, 47648, 72961, 83384, 95296, 145922, 166768, 190592, 291844, 333536, 381184, 583688, 667072, 1167376, 1334144, 2334752, 2668288, 4669504, 9339008, 18678016]

約数ペア:

[(1, 18678016), (2, 9339008), (4, 4669504), (7, 2668288), (8, 2334752), (14, 1334144), (16, 1167376), (28, 667072), (32, 583688), (49, 381184), (56, 333536), (64, 291844), (98, 190592), (112, 166768), (128, 145922), (196, 95296), (224, 83384), (256, 72961), (392, 47648), (448, 41692), (784, 23824), (896, 20846), (1489, 12544), (1568, 11912), (1792, 10423), (2978, 6272), (3136, 5956)]