28207179

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 57028608

約数和(自身を除く): 28821429

約数列:

[1, 3, 7, 9, 11, 13, 21, 31, 33, 39, 63, 77, 91, 93, 99, 101, 117, 143, 217, 231, 273, 279, 303, 341, 403, 429, 651, 693, 707, 819, 909, 1001, 1023, 1111, 1209, 1287, 1313, 1953, 2121, 2387, 2821, 3003, 3069, 3131, 3333, 3627, 3939, 4433, 6363, 7161, 7777, 8463, 9009, 9191, 9393, 9999, 11817, 13299, 14443, 21483, 21917, 23331, 25389, 27573, 28179, 31031, 34441, 39897, 40703, 43329, 65751, 69993, 82719, 93093, 101101, 103323, 122109, 129987, 197253, 241087, 279279, 284921, 303303, 309969, 366327, 447733, 723261, 854763, 909909, 1343199, 2169783, 2564289, 3134131, 4029597, 9402393, 28207179]

約数ペア:

[(1, 28207179), (3, 9402393), (7, 4029597), (9, 3134131), (11, 2564289), (13, 2169783), (21, 1343199), (31, 909909), (33, 854763), (39, 723261), (63, 447733), (77, 366327), (91, 309969), (93, 303303), (99, 284921), (101, 279279), (117, 241087), (143, 197253), (217, 129987), (231, 122109), (273, 103323), (279, 101101), (303, 93093), (341, 82719), (403, 69993), (429, 65751), (651, 43329), (693, 40703), (707, 39897), (819, 34441), (909, 31031), (1001, 28179), (1023, 27573), (1111, 25389), (1209, 23331), (1287, 21917), (1313, 21483), (1953, 14443), (2121, 13299), (2387, 11817), (2821, 9999), (3003, 9393), (3069, 9191), (3131, 9009), (3333, 8463), (3627, 7777), (3939, 7161), (4433, 6363)]