21272950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 22117130

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 50, 58, 85, 145, 170, 290, 425, 493, 725, 850, 863, 986, 1450, 1726, 2465, 4315, 4930, 8630, 12325, 14671, 21575, 24650, 25027, 29342, 43150, 50054, 73355, 125135, 146710, 250270, 366775, 425459, 625675, 733550, 850918, 1251350, 2127295, 4254590, 10636475, 21272950]

約数ペア:

[(1, 21272950), (2, 10636475), (5, 4254590), (10, 2127295), (17, 1251350), (25, 850918), (29, 733550), (34, 625675), (50, 425459), (58, 366775), (85, 250270), (145, 146710), (170, 125135), (290, 73355), (425, 50054), (493, 43150), (725, 29342), (850, 25027), (863, 24650), (986, 21575), (1450, 14671), (1726, 12325), (2465, 8630), (4315, 4930)]