21650384

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 80

約数和(自身を含む): 51746688

約数和(自身を除く): 30096304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 83, 112, 119, 136, 137, 166, 238, 272, 274, 332, 476, 548, 581, 664, 952, 959, 1096, 1162, 1328, 1411, 1904, 1918, 2192, 2324, 2329, 2822, 3836, 4648, 4658, 5644, 7672, 9296, 9316, 9877, 11288, 11371, 15344, 16303, 18632, 19754, 22576, 22742, 32606, 37264, 39508, 45484, 65212, 79016, 79597, 90968, 130424, 158032, 159194, 181936, 193307, 260848, 318388, 386614, 636776, 773228, 1273552, 1353149, 1546456, 2706298, 3092912, 5412596, 10825192, 21650384]

約数ペア:

[(1, 21650384), (2, 10825192), (4, 5412596), (7, 3092912), (8, 2706298), (14, 1546456), (16, 1353149), (17, 1273552), (28, 773228), (34, 636776), (56, 386614), (68, 318388), (83, 260848), (112, 193307), (119, 181936), (136, 159194), (137, 158032), (166, 130424), (238, 90968), (272, 79597), (274, 79016), (332, 65212), (476, 45484), (548, 39508), (581, 37264), (664, 32606), (952, 22742), (959, 22576), (1096, 19754), (1162, 18632), (1328, 16303), (1411, 15344), (1904, 11371), (1918, 11288), (2192, 9877), (2324, 9316), (2329, 9296), (2822, 7672), (3836, 5644), (4648, 4658)]