21371264

素因数分解:

$2^7\times {\mathrm{103}}^1\times {\mathrm{1621}}^1$

素因数の和:1738

約数の個数: 32

約数和(自身を含む): 43015440

約数和(自身を除く): 21644176

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 412, 824, 1621, 1648, 3242, 3296, 6484, 6592, 12968, 13184, 25936, 51872, 103744, 166963, 207488, 333926, 667852, 1335704, 2671408, 5342816, 10685632, 21371264]

約数ペア:

[(1, 21371264), (2, 10685632), (4, 5342816), (8, 2671408), (16, 1335704), (32, 667852), (64, 333926), (103, 207488), (128, 166963), (206, 103744), (412, 51872), (824, 25936), (1621, 13184), (1648, 12968), (3242, 6592), (3296, 6484)]