20881368

素因数分解:

$2^3\times 3^3\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 58380000

約数和(自身を除く): 37498632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 277, 349, 554, 698, 831, 1047, 1108, 1396, 1662, 2094, 2216, 2493, 2792, 3141, 3324, 4188, 4986, 6282, 6648, 7479, 8376, 9423, 9972, 12564, 14958, 18846, 19944, 25128, 29916, 37692, 59832, 75384, 96673, 193346, 290019, 386692, 580038, 773384, 870057, 1160076, 1740114, 2320152, 2610171, 3480228, 5220342, 6960456, 10440684, 20881368]

約数ペア:

[(1, 20881368), (2, 10440684), (3, 6960456), (4, 5220342), (6, 3480228), (8, 2610171), (9, 2320152), (12, 1740114), (18, 1160076), (24, 870057), (27, 773384), (36, 580038), (54, 386692), (72, 290019), (108, 193346), (216, 96673), (277, 75384), (349, 59832), (554, 37692), (698, 29916), (831, 25128), (1047, 19944), (1108, 18846), (1396, 14958), (1662, 12564), (2094, 9972), (2216, 9423), (2493, 8376), (2792, 7479), (3141, 6648), (3324, 6282), (4188, 4986)]