21154432

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12713}}^1$

素因数の和:12740

約数の個数: 32

約数和(自身を含む): 45388980

約数和(自身を除く): 24234548

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12713, 25426, 50852, 101704, 165269, 203408, 330538, 406816, 661076, 813632, 1322152, 1627264, 2644304, 5288608, 10577216, 21154432]

約数ペア:

[(1, 21154432), (2, 10577216), (4, 5288608), (8, 2644304), (13, 1627264), (16, 1322152), (26, 813632), (32, 661076), (52, 406816), (64, 330538), (104, 203408), (128, 165269), (208, 101704), (416, 50852), (832, 25426), (1664, 12713)]