28742217

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{18749}}^1$

素因数の和:18832

約数の個数: 16

約数和(自身を含む): 44400000

約数和(自身を除く): 15657783

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 18749, 56247, 131243, 393729, 1368677, 4106031, 9580739, 28742217]

約数ペア:

[(1, 28742217), (3, 9580739), (7, 4106031), (21, 1368677), (73, 393729), (219, 131243), (511, 56247), (1533, 18749)]