21103812

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{2281}}^1$

素因数の和:2548

約数の個数: 36

約数和(自身を含む): 53576796

約数和(自身を除く): 32472984

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2281, 2313, 3084, 4562, 4626, 6843, 9124, 9252, 13686, 20529, 27372, 41058, 82116, 586217, 1172434, 1758651, 2344868, 3517302, 5275953, 7034604, 10551906, 21103812]

約数ペア:

[(1, 21103812), (2, 10551906), (3, 7034604), (4, 5275953), (6, 3517302), (9, 2344868), (12, 1758651), (18, 1172434), (36, 586217), (257, 82116), (514, 41058), (771, 27372), (1028, 20529), (1542, 13686), (2281, 9252), (2313, 9124), (3084, 6843), (4562, 4626)]