21217938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29717}}^1$

素因数の和:29746

約数の個数: 32

約数和(自身を含む): 51352704

約数和(自身を除く): 30134766

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 238, 357, 714, 29717, 59434, 89151, 178302, 208019, 416038, 505189, 624057, 1010378, 1248114, 1515567, 3031134, 3536323, 7072646, 10608969, 21217938]

約数ペア:

[(1, 21217938), (2, 10608969), (3, 7072646), (6, 3536323), (7, 3031134), (14, 1515567), (17, 1248114), (21, 1010378), (34, 624057), (42, 505189), (51, 416038), (102, 208019), (119, 178302), (238, 89151), (357, 59434), (714, 29717)]