20918664

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22349}}^1$

素因数の和:22374

約数の個数: 48

約数和(自身を含む): 61015500

約数和(自身を除く): 40096836

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22349, 44698, 67047, 89396, 134094, 178792, 201141, 268188, 290537, 402282, 536376, 581074, 804564, 871611, 1162148, 1609128, 1743222, 2324296, 2614833, 3486444, 5229666, 6972888, 10459332, 20918664]

約数ペア:

[(1, 20918664), (2, 10459332), (3, 6972888), (4, 5229666), (6, 3486444), (8, 2614833), (9, 2324296), (12, 1743222), (13, 1609128), (18, 1162148), (24, 871611), (26, 804564), (36, 581074), (39, 536376), (52, 402282), (72, 290537), (78, 268188), (104, 201141), (117, 178792), (156, 134094), (234, 89396), (312, 67047), (468, 44698), (936, 22349)]