21485810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1723}}^1$

素因数の和:1802

約数の個数: 32

約数和(自身を含む): 40962240

約数和(自身を除く): 19476430

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 1723, 2494, 3446, 6235, 8615, 12470, 17230, 49967, 74089, 99934, 148178, 249835, 370445, 499670, 740890, 2148581, 4297162, 10742905, 21485810]

約数ペア:

[(1, 21485810), (2, 10742905), (5, 4297162), (10, 2148581), (29, 740890), (43, 499670), (58, 370445), (86, 249835), (145, 148178), (215, 99934), (290, 74089), (430, 49967), (1247, 17230), (1723, 12470), (2494, 8615), (3446, 6235)]