13391428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 26449920

約数和(自身を除く): 13058492

約数列:

[1, 2, 4, 19, 23, 38, 46, 47, 76, 92, 94, 163, 188, 326, 437, 652, 874, 893, 1081, 1748, 1786, 2162, 3097, 3572, 3749, 4324, 6194, 7498, 7661, 12388, 14996, 15322, 20539, 30644, 41078, 71231, 82156, 142462, 145559, 176203, 284924, 291118, 352406, 582236, 704812, 3347857, 6695714, 13391428]

約数ペア:

[(1, 13391428), (2, 6695714), (4, 3347857), (19, 704812), (23, 582236), (38, 352406), (46, 291118), (47, 284924), (76, 176203), (92, 145559), (94, 142462), (163, 82156), (188, 71231), (326, 41078), (437, 30644), (652, 20539), (874, 15322), (893, 14996), (1081, 12388), (1748, 7661), (1786, 7498), (2162, 6194), (3097, 4324), (3572, 3749)]