21371724

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1861}}^1$

素因数の和:1911

約数の個数: 72

約数和(自身を含む): 60999120

約数和(自身を除く): 39627396

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 29, 33, 36, 44, 58, 66, 87, 99, 116, 132, 174, 198, 261, 319, 348, 396, 522, 638, 957, 1044, 1276, 1861, 1914, 2871, 3722, 3828, 5583, 5742, 7444, 11166, 11484, 16749, 20471, 22332, 33498, 40942, 53969, 61413, 66996, 81884, 107938, 122826, 161907, 184239, 215876, 245652, 323814, 368478, 485721, 593659, 647628, 736956, 971442, 1187318, 1780977, 1942884, 2374636, 3561954, 5342931, 7123908, 10685862, 21371724]

約数ペア:

[(1, 21371724), (2, 10685862), (3, 7123908), (4, 5342931), (6, 3561954), (9, 2374636), (11, 1942884), (12, 1780977), (18, 1187318), (22, 971442), (29, 736956), (33, 647628), (36, 593659), (44, 485721), (58, 368478), (66, 323814), (87, 245652), (99, 215876), (116, 184239), (132, 161907), (174, 122826), (198, 107938), (261, 81884), (319, 66996), (348, 61413), (396, 53969), (522, 40942), (638, 33498), (957, 22332), (1044, 20471), (1276, 16749), (1861, 11484), (1914, 11166), (2871, 7444), (3722, 5742), (3828, 5583)]