20931408

素因数分解:

$2^4\times 3^2\times {\mathrm{137}}^1\times {\mathrm{1061}}^1$

素因数の和:1212

約数の個数: 60

約数和(自身を含む): 59062068

約数和(自身を除く): 38130660

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 137, 144, 274, 411, 548, 822, 1061, 1096, 1233, 1644, 2122, 2192, 2466, 3183, 3288, 4244, 4932, 6366, 6576, 8488, 9549, 9864, 12732, 16976, 19098, 19728, 25464, 38196, 50928, 76392, 145357, 152784, 290714, 436071, 581428, 872142, 1162856, 1308213, 1744284, 2325712, 2616426, 3488568, 5232852, 6977136, 10465704, 20931408]

約数ペア:

[(1, 20931408), (2, 10465704), (3, 6977136), (4, 5232852), (6, 3488568), (8, 2616426), (9, 2325712), (12, 1744284), (16, 1308213), (18, 1162856), (24, 872142), (36, 581428), (48, 436071), (72, 290714), (137, 152784), (144, 145357), (274, 76392), (411, 50928), (548, 38196), (822, 25464), (1061, 19728), (1096, 19098), (1233, 16976), (1644, 12732), (2122, 9864), (2192, 9549), (2466, 8488), (3183, 6576), (3288, 6366), (4244, 4932)]