21255804

素因数分解:

$2^2\times 3^3\times {\mathrm{97}}^1\times {\mathrm{2029}}^1$

素因数の和:2139

約数の個数: 48

約数和(自身を含む): 55703200

約数和(自身を除く): 34447396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 97, 108, 194, 291, 388, 582, 873, 1164, 1746, 2029, 2619, 3492, 4058, 5238, 6087, 8116, 10476, 12174, 18261, 24348, 36522, 54783, 73044, 109566, 196813, 219132, 393626, 590439, 787252, 1180878, 1771317, 2361756, 3542634, 5313951, 7085268, 10627902, 21255804]

約数ペア:

[(1, 21255804), (2, 10627902), (3, 7085268), (4, 5313951), (6, 3542634), (9, 2361756), (12, 1771317), (18, 1180878), (27, 787252), (36, 590439), (54, 393626), (97, 219132), (108, 196813), (194, 109566), (291, 73044), (388, 54783), (582, 36522), (873, 24348), (1164, 18261), (1746, 12174), (2029, 10476), (2619, 8116), (3492, 6087), (4058, 5238)]