21590042

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 35555520

約数和(自身を除く): 13965478

約数列:

[1, 2, 19, 38, 43, 73, 86, 146, 181, 362, 817, 1387, 1634, 2774, 3139, 3439, 6278, 6878, 7783, 13213, 15566, 26426, 59641, 119282, 147877, 251047, 295754, 502094, 568159, 1136318, 10795021, 21590042]

約数ペア:

[(1, 21590042), (2, 10795021), (19, 1136318), (38, 568159), (43, 502094), (73, 295754), (86, 251047), (146, 147877), (181, 119282), (362, 59641), (817, 26426), (1387, 15566), (1634, 13213), (2774, 7783), (3139, 6878), (3439, 6278)]