19886468

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 21508732

約数列:

[1, 2, 4, 7, 14, 28, 43, 83, 86, 166, 172, 199, 301, 332, 398, 581, 602, 796, 1162, 1204, 1393, 2324, 2786, 3569, 5572, 7138, 8557, 14276, 16517, 17114, 24983, 33034, 34228, 49966, 59899, 66068, 99932, 115619, 119798, 231238, 239596, 462476, 710231, 1420462, 2840924, 4971617, 9943234, 19886468]

約数ペア:

[(1, 19886468), (2, 9943234), (4, 4971617), (7, 2840924), (14, 1420462), (28, 710231), (43, 462476), (83, 239596), (86, 231238), (166, 119798), (172, 115619), (199, 99932), (301, 66068), (332, 59899), (398, 49966), (581, 34228), (602, 33034), (796, 24983), (1162, 17114), (1204, 16517), (1393, 14276), (2324, 8557), (2786, 7138), (3569, 5572)]