20591648

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 51746688

約数和(自身を除く): 31155040

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 61, 77, 88, 112, 122, 137, 154, 176, 224, 244, 274, 308, 352, 427, 488, 548, 616, 671, 854, 959, 976, 1096, 1232, 1342, 1507, 1708, 1918, 1952, 2192, 2464, 2684, 3014, 3416, 3836, 4384, 4697, 5368, 6028, 6832, 7672, 8357, 9394, 10549, 10736, 12056, 13664, 15344, 16714, 18788, 21098, 21472, 24112, 30688, 33428, 37576, 42196, 48224, 58499, 66856, 75152, 84392, 91927, 116998, 133712, 150304, 168784, 183854, 233996, 267424, 337568, 367708, 467992, 643489, 735416, 935984, 1286978, 1470832, 1871968, 2573956, 2941664, 5147912, 10295824, 20591648]

約数ペア:

[(1, 20591648), (2, 10295824), (4, 5147912), (7, 2941664), (8, 2573956), (11, 1871968), (14, 1470832), (16, 1286978), (22, 935984), (28, 735416), (32, 643489), (44, 467992), (56, 367708), (61, 337568), (77, 267424), (88, 233996), (112, 183854), (122, 168784), (137, 150304), (154, 133712), (176, 116998), (224, 91927), (244, 84392), (274, 75152), (308, 66856), (352, 58499), (427, 48224), (488, 42196), (548, 37576), (616, 33428), (671, 30688), (854, 24112), (959, 21472), (976, 21098), (1096, 18788), (1232, 16714), (1342, 15344), (1507, 13664), (1708, 12056), (1918, 10736), (1952, 10549), (2192, 9394), (2464, 8357), (2684, 7672), (3014, 6832), (3416, 6028), (3836, 5368), (4384, 4697)]