21109836

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{443}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 56839104

約数和(自身を除く): 35729268

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 361, 418, 443, 627, 722, 836, 886, 1083, 1254, 1329, 1444, 1772, 2166, 2508, 2658, 3971, 4332, 4873, 5316, 7942, 8417, 9746, 11913, 14619, 15884, 16834, 19492, 23826, 25251, 29238, 33668, 47652, 50502, 58476, 92587, 101004, 159923, 185174, 277761, 319846, 370348, 479769, 555522, 639692, 959538, 1111044, 1759153, 1919076, 3518306, 5277459, 7036612, 10554918, 21109836]

約数ペア:

[(1, 21109836), (2, 10554918), (3, 7036612), (4, 5277459), (6, 3518306), (11, 1919076), (12, 1759153), (19, 1111044), (22, 959538), (33, 639692), (38, 555522), (44, 479769), (57, 370348), (66, 319846), (76, 277761), (114, 185174), (132, 159923), (209, 101004), (228, 92587), (361, 58476), (418, 50502), (443, 47652), (627, 33668), (722, 29238), (836, 25251), (886, 23826), (1083, 19492), (1254, 16834), (1329, 15884), (1444, 14619), (1772, 11913), (2166, 9746), (2508, 8417), (2658, 7942), (3971, 5316), (4332, 4873)]