21605324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2549}}^1$

素因数の和:2729

約数の個数: 24

約数和(自身を含む): 40983600

約数和(自身を除く): 19378276

約数列:

[1, 2, 4, 13, 26, 52, 163, 326, 652, 2119, 2549, 4238, 5098, 8476, 10196, 33137, 66274, 132548, 415487, 830974, 1661948, 5401331, 10802662, 21605324]

約数ペア:

[(1, 21605324), (2, 10802662), (4, 5401331), (13, 1661948), (26, 830974), (52, 415487), (163, 132548), (326, 66274), (652, 33137), (2119, 10196), (2549, 8476), (4238, 5098)]