21995496

素因数分解:

$2^3\times 3^3\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1383

約数の個数: 64

約数和(自身を含む): 61920000

約数和(自身を除く): 39924504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 79, 108, 158, 216, 237, 316, 474, 632, 711, 948, 1289, 1422, 1896, 2133, 2578, 2844, 3867, 4266, 5156, 5688, 7734, 8532, 10312, 11601, 15468, 17064, 23202, 30936, 34803, 46404, 69606, 92808, 101831, 139212, 203662, 278424, 305493, 407324, 610986, 814648, 916479, 1221972, 1832958, 2443944, 2749437, 3665916, 5498874, 7331832, 10997748, 21995496]

約数ペア:

[(1, 21995496), (2, 10997748), (3, 7331832), (4, 5498874), (6, 3665916), (8, 2749437), (9, 2443944), (12, 1832958), (18, 1221972), (24, 916479), (27, 814648), (36, 610986), (54, 407324), (72, 305493), (79, 278424), (108, 203662), (158, 139212), (216, 101831), (237, 92808), (316, 69606), (474, 46404), (632, 34803), (711, 30936), (948, 23202), (1289, 17064), (1422, 15468), (1896, 11601), (2133, 10312), (2578, 8532), (2844, 7734), (3867, 5688), (4266, 5156)]