21257344

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{9769}}^1$

素因数の和:9800

約数の個数: 32

約数和(自身を含む): 44844300

約数和(自身を除く): 23586956

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 9769, 19538, 39076, 78152, 156304, 166073, 312608, 332146, 625216, 664292, 1250432, 1328584, 2657168, 5314336, 10628672, 21257344]

約数ペア:

[(1, 21257344), (2, 10628672), (4, 5314336), (8, 2657168), (16, 1328584), (17, 1250432), (32, 664292), (34, 625216), (64, 332146), (68, 312608), (128, 166073), (136, 156304), (272, 78152), (544, 39076), (1088, 19538), (2176, 9769)]