21345363

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 35773920

約数和(自身を除く): 14428557

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 233, 243, 261, 351, 377, 699, 783, 1053, 1131, 2097, 2349, 3029, 3159, 3393, 6291, 6757, 7047, 9087, 10179, 18873, 20271, 27261, 30537, 56619, 60813, 81783, 87841, 91611, 182439, 245349, 263523, 547317, 736047, 790569, 1641951, 2371707, 7115121, 21345363]

約数ペア:

[(1, 21345363), (3, 7115121), (9, 2371707), (13, 1641951), (27, 790569), (29, 736047), (39, 547317), (81, 263523), (87, 245349), (117, 182439), (233, 91611), (243, 87841), (261, 81783), (351, 60813), (377, 56619), (699, 30537), (783, 27261), (1053, 20271), (1131, 18873), (2097, 10179), (2349, 9087), (3029, 7047), (3159, 6757), (3393, 6291)]