15881492

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 32383680

約数和(自身を除く): 16502188

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 157, 209, 242, 314, 418, 484, 628, 836, 1331, 1727, 2299, 2662, 2983, 3454, 4598, 5324, 5966, 6908, 9196, 11932, 18997, 25289, 32813, 37994, 50578, 65626, 75988, 101156, 131252, 208967, 360943, 417934, 721886, 835868, 1443772, 3970373, 7940746, 15881492]

約数ペア:

[(1, 15881492), (2, 7940746), (4, 3970373), (11, 1443772), (19, 835868), (22, 721886), (38, 417934), (44, 360943), (76, 208967), (121, 131252), (157, 101156), (209, 75988), (242, 65626), (314, 50578), (418, 37994), (484, 32813), (628, 25289), (836, 18997), (1331, 11932), (1727, 9196), (2299, 6908), (2662, 5966), (2983, 5324), (3454, 4598)]