21751312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1489}}^1$

素因数の和:1591

約数の個数: 40

約数和(自身を含む): 46559520

約数和(自身を除く): 24808208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1489, 1826, 2978, 3652, 5956, 7304, 11912, 14608, 16379, 23824, 32758, 65516, 123587, 131032, 247174, 262064, 494348, 988696, 1359457, 1977392, 2718914, 5437828, 10875656, 21751312]

約数ペア:

[(1, 21751312), (2, 10875656), (4, 5437828), (8, 2718914), (11, 1977392), (16, 1359457), (22, 988696), (44, 494348), (83, 262064), (88, 247174), (166, 131032), (176, 123587), (332, 65516), (664, 32758), (913, 23824), (1328, 16379), (1489, 14608), (1826, 11912), (2978, 7304), (3652, 5956)]