21649968

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 65672880

約数和(自身を除く): 44022912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 41, 48, 57, 72, 76, 82, 114, 123, 144, 152, 164, 171, 193, 228, 246, 304, 328, 342, 369, 386, 456, 492, 579, 656, 684, 738, 772, 779, 912, 984, 1158, 1368, 1476, 1544, 1558, 1737, 1968, 2316, 2337, 2736, 2952, 3088, 3116, 3474, 3667, 4632, 4674, 5904, 6232, 6948, 7011, 7334, 7913, 9264, 9348, 11001, 12464, 13896, 14022, 14668, 15826, 18696, 22002, 23739, 27792, 28044, 29336, 31652, 33003, 37392, 44004, 47478, 56088, 58672, 63304, 66006, 71217, 88008, 94956, 112176, 126608, 132012, 142434, 150347, 176016, 189912, 264024, 284868, 300694, 379824, 451041, 528048, 569736, 601388, 902082, 1139472, 1202776, 1353123, 1804164, 2405552, 2706246, 3608328, 5412492, 7216656, 10824984, 21649968]

約数ペア:

[(1, 21649968), (2, 10824984), (3, 7216656), (4, 5412492), (6, 3608328), (8, 2706246), (9, 2405552), (12, 1804164), (16, 1353123), (18, 1202776), (19, 1139472), (24, 902082), (36, 601388), (38, 569736), (41, 528048), (48, 451041), (57, 379824), (72, 300694), (76, 284868), (82, 264024), (114, 189912), (123, 176016), (144, 150347), (152, 142434), (164, 132012), (171, 126608), (193, 112176), (228, 94956), (246, 88008), (304, 71217), (328, 66006), (342, 63304), (369, 58672), (386, 56088), (456, 47478), (492, 44004), (579, 37392), (656, 33003), (684, 31652), (738, 29336), (772, 28044), (779, 27792), (912, 23739), (984, 22002), (1158, 18696), (1368, 15826), (1476, 14668), (1544, 14022), (1558, 13896), (1737, 12464), (1968, 11001), (2316, 9348), (2337, 9264), (2736, 7913), (2952, 7334), (3088, 7011), (3116, 6948), (3474, 6232), (3667, 5904), (4632, 4674)]