18939136

素因数分解:

$2^8\times {\mathrm{167}}^1\times {\mathrm{443}}^1$

素因数の和:626

約数の個数: 36

約数和(自身を含む): 38116512

約数和(自身を除く): 19177376

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167, 256, 334, 443, 668, 886, 1336, 1772, 2672, 3544, 5344, 7088, 10688, 14176, 21376, 28352, 42752, 56704, 73981, 113408, 147962, 295924, 591848, 1183696, 2367392, 4734784, 9469568, 18939136]

約数ペア:

[(1, 18939136), (2, 9469568), (4, 4734784), (8, 2367392), (16, 1183696), (32, 591848), (64, 295924), (128, 147962), (167, 113408), (256, 73981), (334, 56704), (443, 42752), (668, 28352), (886, 21376), (1336, 14176), (1772, 10688), (2672, 7088), (3544, 5344)]