20541456

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10973}}^1$

素因数の和:11000

約数の個数: 60

約数和(自身を含む): 61915308

約数和(自身を除く): 41373852

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 10973, 21946, 32919, 43892, 65838, 87784, 98757, 131676, 142649, 175568, 197514, 263352, 285298, 395028, 427947, 526704, 570596, 790056, 855894, 1141192, 1283841, 1580112, 1711788, 2282384, 2567682, 3423576, 5135364, 6847152, 10270728, 20541456]

約数ペア:

[(1, 20541456), (2, 10270728), (3, 6847152), (4, 5135364), (6, 3423576), (8, 2567682), (9, 2282384), (12, 1711788), (13, 1580112), (16, 1283841), (18, 1141192), (24, 855894), (26, 790056), (36, 570596), (39, 526704), (48, 427947), (52, 395028), (72, 285298), (78, 263352), (104, 197514), (117, 175568), (144, 142649), (156, 131676), (208, 98757), (234, 87784), (312, 65838), (468, 43892), (624, 32919), (936, 21946), (1872, 10973)]