21703475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 28748160

約数和(自身を除く): 7044685

約数列:

[1, 5, 17, 25, 85, 223, 229, 425, 1115, 1145, 3791, 3893, 5575, 5725, 18955, 19465, 51067, 94775, 97325, 255335, 868139, 1276675, 4340695, 21703475]

約数ペア:

[(1, 21703475), (5, 4340695), (17, 1276675), (25, 868139), (85, 255335), (223, 97325), (229, 94775), (425, 51067), (1115, 19465), (1145, 18955), (3791, 5725), (3893, 5575)]