21105406

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 37594368

約数和(自身を除く): 16488962

約数列:

[1, 2, 7, 14, 41, 82, 83, 166, 287, 443, 574, 581, 886, 1162, 3101, 3403, 6202, 6806, 18163, 23821, 36326, 36769, 47642, 73538, 127141, 254282, 257383, 514766, 1507529, 3015058, 10552703, 21105406]

約数ペア:

[(1, 21105406), (2, 10552703), (7, 3015058), (14, 1507529), (41, 514766), (82, 257383), (83, 254282), (166, 127141), (287, 73538), (443, 47642), (574, 36769), (581, 36326), (886, 23821), (1162, 18163), (3101, 6806), (3403, 6202)]