21226352

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2399}}^1$

素因数の和:2493

約数の個数: 40

約数和(自身を含む): 47616000

約数和(自身を除く): 26389648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2399, 4424, 4798, 8848, 9596, 16793, 19192, 33586, 38384, 67172, 134344, 189521, 268688, 379042, 758084, 1326647, 1516168, 2653294, 3032336, 5306588, 10613176, 21226352]

約数ペア:

[(1, 21226352), (2, 10613176), (4, 5306588), (7, 3032336), (8, 2653294), (14, 1516168), (16, 1326647), (28, 758084), (56, 379042), (79, 268688), (112, 189521), (158, 134344), (316, 67172), (553, 38384), (632, 33586), (1106, 19192), (1264, 16793), (2212, 9596), (2399, 8848), (4424, 4798)]