19732839

素因数分解:

$3^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 30788208

約数和(自身を除く): 11055369

約数列:

[1, 3, 7, 21, 49, 147, 241, 557, 723, 1671, 1687, 3899, 5061, 11697, 11809, 27293, 35427, 81879, 134237, 402711, 939659, 2818977, 6577613, 19732839]

約数ペア:

[(1, 19732839), (3, 6577613), (7, 2818977), (21, 939659), (49, 402711), (147, 134237), (241, 81879), (557, 35427), (723, 27293), (1671, 11809), (1687, 11697), (3899, 5061)]