21645648

素因数分解:

$2^4\times 3^2\times {\mathrm{191}}^1\times {\mathrm{787}}^1$

素因数の和:992

約数の個数: 60

約数和(自身を含む): 60972288

約数和(自身を除く): 39326640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 191, 382, 573, 764, 787, 1146, 1528, 1574, 1719, 2292, 2361, 3056, 3148, 3438, 4584, 4722, 6296, 6876, 7083, 9168, 9444, 12592, 13752, 14166, 18888, 27504, 28332, 37776, 56664, 113328, 150317, 300634, 450951, 601268, 901902, 1202536, 1352853, 1803804, 2405072, 2705706, 3607608, 5411412, 7215216, 10822824, 21645648]

約数ペア:

[(1, 21645648), (2, 10822824), (3, 7215216), (4, 5411412), (6, 3607608), (8, 2705706), (9, 2405072), (12, 1803804), (16, 1352853), (18, 1202536), (24, 901902), (36, 601268), (48, 450951), (72, 300634), (144, 150317), (191, 113328), (382, 56664), (573, 37776), (764, 28332), (787, 27504), (1146, 18888), (1528, 14166), (1574, 13752), (1719, 12592), (2292, 9444), (2361, 9168), (3056, 7083), (3148, 6876), (3438, 6296), (4584, 4722)]