388889451

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{20201}}^1$

素因数の和:20264

約数の個数: 32

約数和(自身を含む): 620605440

約数和(自身を除く): 231715989

約数列:

[1, 3, 9, 23, 27, 31, 69, 93, 207, 279, 621, 713, 837, 2139, 6417, 19251, 20201, 60603, 181809, 464623, 545427, 626231, 1393869, 1878693, 4181607, 5636079, 12544821, 14403313, 16908237, 43209939, 129629817, 388889451]

約数ペア:

[(1, 388889451), (3, 129629817), (9, 43209939), (23, 16908237), (27, 14403313), (31, 12544821), (69, 5636079), (93, 4181607), (207, 1878693), (279, 1393869), (621, 626231), (713, 545427), (837, 464623), (2139, 181809), (6417, 60603), (19251, 20201)]