20181160917

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{15959}}^1$

素因数の和:16178

約数の個数: 48

約数和(自身を含む): 31370976000

約数和(自身を除く): 11189815083

約数列:

[1, 3, 9, 23, 41, 69, 123, 149, 207, 369, 447, 943, 1341, 2829, 3427, 6109, 8487, 10281, 15959, 18327, 30843, 47877, 54981, 140507, 143631, 367057, 421521, 654319, 1101171, 1264563, 1962957, 2377891, 3303513, 5888871, 7133673, 15049337, 21401019, 45148011, 54691493, 97493531, 135444033, 164074479, 292480593, 492223437, 877441779, 2242351213, 6727053639, 20181160917]

約数ペア:

[(1, 20181160917), (3, 6727053639), (9, 2242351213), (23, 877441779), (41, 492223437), (69, 292480593), (123, 164074479), (149, 135444033), (207, 97493531), (369, 54691493), (447, 45148011), (943, 21401019), (1341, 15049337), (2829, 7133673), (3427, 5888871), (6109, 3303513), (8487, 2377891), (10281, 1962957), (15959, 1264563), (18327, 1101171), (30843, 654319), (47877, 421521), (54981, 367057), (140507, 143631)]