21701708

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{421}}^1$

素因数の和:702

約数の個数: 36

約数和(自身を含む): 44451792

約数和(自身を除く): 22750084

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 421, 526, 842, 1052, 1684, 1841, 2947, 3682, 5894, 7364, 11788, 12887, 20629, 25774, 41258, 51548, 82516, 110723, 221446, 442892, 775061, 1550122, 3100244, 5425427, 10850854, 21701708]

約数ペア:

[(1, 21701708), (2, 10850854), (4, 5425427), (7, 3100244), (14, 1550122), (28, 775061), (49, 442892), (98, 221446), (196, 110723), (263, 82516), (421, 51548), (526, 41258), (842, 25774), (1052, 20629), (1684, 12887), (1841, 11788), (2947, 7364), (3682, 5894)]