1991388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 5379584

約数和(自身を除く): 3388196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 151, 157, 302, 314, 453, 471, 604, 628, 906, 942, 1057, 1099, 1812, 1884, 2114, 2198, 3171, 3297, 4228, 4396, 6342, 6594, 12684, 13188, 23707, 47414, 71121, 94828, 142242, 165949, 284484, 331898, 497847, 663796, 995694, 1991388]

約数ペア:

[(1, 1991388), (2, 995694), (3, 663796), (4, 497847), (6, 331898), (7, 284484), (12, 165949), (14, 142242), (21, 94828), (28, 71121), (42, 47414), (84, 23707), (151, 13188), (157, 12684), (302, 6594), (314, 6342), (453, 4396), (471, 4228), (604, 3297), (628, 3171), (906, 2198), (942, 2114), (1057, 1884), (1099, 1812)]