21070556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9883}}^1$

素因数の和:9941

約数の個数: 24

約数和(自身を含む): 40682544

約数和(自身を除く): 19611988

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9883, 19766, 39532, 128479, 256958, 405203, 513916, 810406, 1620812, 5267639, 10535278, 21070556]

約数ペア:

[(1, 21070556), (2, 10535278), (4, 5267639), (13, 1620812), (26, 810406), (41, 513916), (52, 405203), (82, 256958), (164, 128479), (533, 39532), (1066, 19766), (2132, 9883)]