19988066

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:914

約数の個数: 32

約数和(自身を含む): 35983872

約数和(自身を除く): 15995806

約数列:

[1, 2, 7, 14, 37, 47, 74, 94, 259, 329, 518, 658, 821, 1642, 1739, 3478, 5747, 11494, 12173, 24346, 30377, 38587, 60754, 77174, 212639, 270109, 425278, 540218, 1427719, 2855438, 9994033, 19988066]

約数ペア:

[(1, 19988066), (2, 9994033), (7, 2855438), (14, 1427719), (37, 540218), (47, 425278), (74, 270109), (94, 212639), (259, 77174), (329, 60754), (518, 38587), (658, 30377), (821, 24346), (1642, 12173), (1739, 11494), (3478, 5747)]