18635968

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{1723}}^1$

素因数の和:1761

約数の個数: 42

約数和(自身を含む): 40067484

約数和(自身を除く): 21431516

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 1723, 2704, 3446, 5408, 6892, 10816, 13784, 22399, 27568, 44798, 55136, 89596, 110272, 179192, 291187, 358384, 582374, 716768, 1164748, 1433536, 2329496, 4658992, 9317984, 18635968]

約数ペア:

[(1, 18635968), (2, 9317984), (4, 4658992), (8, 2329496), (13, 1433536), (16, 1164748), (26, 716768), (32, 582374), (52, 358384), (64, 291187), (104, 179192), (169, 110272), (208, 89596), (338, 55136), (416, 44798), (676, 27568), (832, 22399), (1352, 13784), (1723, 10816), (2704, 6892), (3446, 5408)]