19640422

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12293018

約数列:

[1, 2, 31, 43, 53, 62, 86, 106, 139, 278, 1333, 1643, 2279, 2666, 3286, 4309, 4558, 5977, 7367, 8618, 11954, 14734, 70649, 141298, 185287, 228377, 316781, 370574, 456754, 633562, 9820211, 19640422]

約数ペア:

[(1, 19640422), (2, 9820211), (31, 633562), (43, 456754), (53, 370574), (62, 316781), (86, 228377), (106, 185287), (139, 141298), (278, 70649), (1333, 14734), (1643, 11954), (2279, 8618), (2666, 7367), (3286, 5977), (4309, 4558)]