28871318

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 51110400

約数和(自身を除く): 22239082

約数列:

[1, 2, 7, 14, 43, 86, 199, 241, 301, 398, 482, 602, 1393, 1687, 2786, 3374, 8557, 10363, 17114, 20726, 47959, 59899, 72541, 95918, 119798, 145082, 335713, 671426, 2062237, 4124474, 14435659, 28871318]

約数ペア:

[(1, 28871318), (2, 14435659), (7, 4124474), (14, 2062237), (43, 671426), (86, 335713), (199, 145082), (241, 119798), (301, 95918), (398, 72541), (482, 59899), (602, 47959), (1393, 20726), (1687, 17114), (2786, 10363), (3374, 8557)]