20641327

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 5486033

約数列:

[1, 7, 23, 41, 53, 59, 161, 287, 371, 413, 943, 1219, 1357, 2173, 2419, 3127, 6601, 8533, 9499, 15211, 16933, 21889, 49979, 55637, 71921, 128207, 349853, 389459, 503447, 897449, 2948761, 20641327]

約数ペア:

[(1, 20641327), (7, 2948761), (23, 897449), (41, 503447), (53, 389459), (59, 349853), (161, 128207), (287, 71921), (371, 55637), (413, 49979), (943, 21889), (1219, 16933), (1357, 15211), (2173, 9499), (2419, 8533), (3127, 6601)]