19978966

素因数分解:

$2^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{853}}^1$

素因数の和:1108

約数の個数: 24

約数和(自身を含む): 35048160

約数和(自身を除く): 15069194

約数列:

[1, 2, 7, 14, 49, 98, 239, 478, 853, 1673, 1706, 3346, 5971, 11711, 11942, 23422, 41797, 83594, 203867, 407734, 1427069, 2854138, 9989483, 19978966]

約数ペア:

[(1, 19978966), (2, 9989483), (7, 2854138), (14, 1427069), (49, 407734), (98, 203867), (239, 83594), (478, 41797), (853, 23422), (1673, 11942), (1706, 11711), (3346, 5971)]