21490856

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{5449}}^1$

素因数の和:5501

約数の個数: 32

約数和(自身を含む): 44145000

約数和(自身を除く): 22654144

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 3944, 5449, 10898, 21796, 43592, 92633, 158021, 185266, 316042, 370532, 632084, 741064, 1264168, 2686357, 5372714, 10745428, 21490856]

約数ペア:

[(1, 21490856), (2, 10745428), (4, 5372714), (8, 2686357), (17, 1264168), (29, 741064), (34, 632084), (58, 370532), (68, 316042), (116, 185266), (136, 158021), (232, 92633), (493, 43592), (986, 21796), (1972, 10898), (3944, 5449)]