21978072

素因数分解:

$2^3\times 3^2\times {\mathrm{383}}^1\times {\mathrm{797}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 59754240

約数和(自身を除く): 37776168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 383, 766, 797, 1149, 1532, 1594, 2298, 2391, 3064, 3188, 3447, 4596, 4782, 6376, 6894, 7173, 9192, 9564, 13788, 14346, 19128, 27576, 28692, 57384, 305251, 610502, 915753, 1221004, 1831506, 2442008, 2747259, 3663012, 5494518, 7326024, 10989036, 21978072]

約数ペア:

[(1, 21978072), (2, 10989036), (3, 7326024), (4, 5494518), (6, 3663012), (8, 2747259), (9, 2442008), (12, 1831506), (18, 1221004), (24, 915753), (36, 610502), (72, 305251), (383, 57384), (766, 28692), (797, 27576), (1149, 19128), (1532, 14346), (1594, 13788), (2298, 9564), (2391, 9192), (3064, 7173), (3188, 6894), (3447, 6376), (4596, 4782)]