21609324

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 60108048

約数和(自身を除く): 38498724

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 197, 198, 277, 394, 396, 554, 591, 788, 831, 1108, 1182, 1662, 1773, 2167, 2364, 2493, 3047, 3324, 3546, 4334, 4986, 6094, 6501, 7092, 8668, 9141, 9972, 12188, 13002, 18282, 19503, 26004, 27423, 36564, 39006, 54569, 54846, 78012, 109138, 109692, 163707, 218276, 327414, 491121, 600259, 654828, 982242, 1200518, 1800777, 1964484, 2401036, 3601554, 5402331, 7203108, 10804662, 21609324]

約数ペア:

[(1, 21609324), (2, 10804662), (3, 7203108), (4, 5402331), (6, 3601554), (9, 2401036), (11, 1964484), (12, 1800777), (18, 1200518), (22, 982242), (33, 654828), (36, 600259), (44, 491121), (66, 327414), (99, 218276), (132, 163707), (197, 109692), (198, 109138), (277, 78012), (394, 54846), (396, 54569), (554, 39006), (591, 36564), (788, 27423), (831, 26004), (1108, 19503), (1182, 18282), (1662, 13002), (1773, 12188), (2167, 9972), (2364, 9141), (2493, 8668), (3047, 7092), (3324, 6501), (3546, 6094), (4334, 4986)]