21741445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 30222720

約数和(自身を除く): 8481275

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 317, 319, 473, 1247, 1585, 1595, 2365, 3487, 6235, 9193, 13631, 13717, 17435, 45965, 68155, 68585, 101123, 149941, 395299, 505615, 749705, 1976495, 4348289, 21741445]

約数ペア:

[(1, 21741445), (5, 4348289), (11, 1976495), (29, 749705), (43, 505615), (55, 395299), (145, 149941), (215, 101123), (317, 68585), (319, 68155), (473, 45965), (1247, 17435), (1585, 13717), (1595, 13631), (2365, 9193), (3487, 6235)]