21917792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 28885408

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 47, 52, 59, 76, 94, 104, 118, 152, 188, 208, 236, 247, 304, 376, 416, 472, 494, 608, 611, 752, 767, 893, 944, 988, 1121, 1222, 1504, 1534, 1786, 1888, 1976, 2242, 2444, 2773, 3068, 3572, 3952, 4484, 4888, 5546, 6136, 7144, 7904, 8968, 9776, 11092, 11609, 12272, 14288, 14573, 17936, 19552, 22184, 23218, 24544, 28576, 29146, 35872, 36049, 44368, 46436, 52687, 58292, 72098, 88736, 92872, 105374, 116584, 144196, 185744, 210748, 233168, 288392, 371488, 421496, 466336, 576784, 684931, 842992, 1153568, 1369862, 1685984, 2739724, 5479448, 10958896, 21917792]

約数ペア:

[(1, 21917792), (2, 10958896), (4, 5479448), (8, 2739724), (13, 1685984), (16, 1369862), (19, 1153568), (26, 842992), (32, 684931), (38, 576784), (47, 466336), (52, 421496), (59, 371488), (76, 288392), (94, 233168), (104, 210748), (118, 185744), (152, 144196), (188, 116584), (208, 105374), (236, 92872), (247, 88736), (304, 72098), (376, 58292), (416, 52687), (472, 46436), (494, 44368), (608, 36049), (611, 35872), (752, 29146), (767, 28576), (893, 24544), (944, 23218), (988, 22184), (1121, 19552), (1222, 17936), (1504, 14573), (1534, 14288), (1786, 12272), (1888, 11609), (1976, 11092), (2242, 9776), (2444, 8968), (2773, 7904), (3068, 7144), (3572, 6136), (3952, 5546), (4484, 4888)]