20879628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{383}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 41051892

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 59, 66, 77, 84, 118, 132, 154, 177, 231, 236, 308, 354, 383, 413, 462, 649, 708, 766, 826, 924, 1149, 1239, 1298, 1532, 1652, 1947, 2298, 2478, 2596, 2681, 3894, 4213, 4543, 4596, 4956, 5362, 7788, 8043, 8426, 9086, 10724, 12639, 13629, 16086, 16852, 18172, 22597, 25278, 27258, 29491, 32172, 45194, 50556, 54516, 58982, 67791, 88473, 90388, 117964, 135582, 158179, 176946, 248567, 271164, 316358, 353892, 474537, 497134, 632716, 745701, 949074, 994268, 1491402, 1739969, 1898148, 2982804, 3479938, 5219907, 6959876, 10439814, 20879628]

約数ペア:

[(1, 20879628), (2, 10439814), (3, 6959876), (4, 5219907), (6, 3479938), (7, 2982804), (11, 1898148), (12, 1739969), (14, 1491402), (21, 994268), (22, 949074), (28, 745701), (33, 632716), (42, 497134), (44, 474537), (59, 353892), (66, 316358), (77, 271164), (84, 248567), (118, 176946), (132, 158179), (154, 135582), (177, 117964), (231, 90388), (236, 88473), (308, 67791), (354, 58982), (383, 54516), (413, 50556), (462, 45194), (649, 32172), (708, 29491), (766, 27258), (826, 25278), (924, 22597), (1149, 18172), (1239, 16852), (1298, 16086), (1532, 13629), (1652, 12639), (1947, 10724), (2298, 9086), (2478, 8426), (2596, 8043), (2681, 7788), (3894, 5362), (4213, 4956), (4543, 4596)]