21347645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{797}}^1$

素因数の和:1300

約数の個数: 16

約数和(自身を含む): 28038528

約数和(自身を除く): 6690883

約数列:

[1, 5, 11, 55, 487, 797, 2435, 3985, 5357, 8767, 26785, 43835, 388139, 1940695, 4269529, 21347645]

約数ペア:

[(1, 21347645), (5, 4269529), (11, 1940695), (55, 388139), (487, 43835), (797, 26785), (2435, 8767), (3985, 5357)]