21673912

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:113

約数の個数: 96

約数和(自身を含む): 49805280

約数和(自身を除く): 28131368

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 41, 46, 52, 68, 82, 92, 104, 136, 164, 169, 184, 221, 299, 328, 338, 391, 442, 533, 598, 676, 697, 782, 884, 943, 1066, 1196, 1352, 1394, 1564, 1768, 1886, 2132, 2392, 2788, 2873, 3128, 3772, 3887, 4264, 5083, 5576, 5746, 6929, 7544, 7774, 9061, 10166, 11492, 12259, 13858, 15548, 16031, 18122, 20332, 22984, 24518, 27716, 31096, 32062, 36244, 40664, 49036, 55432, 64124, 66079, 72488, 98072, 117793, 128248, 132158, 159367, 208403, 235586, 264316, 318734, 416806, 471172, 528632, 637468, 833612, 942344, 1274936, 1667224, 2709239, 5418478, 10836956, 21673912]

約数ペア:

[(1, 21673912), (2, 10836956), (4, 5418478), (8, 2709239), (13, 1667224), (17, 1274936), (23, 942344), (26, 833612), (34, 637468), (41, 528632), (46, 471172), (52, 416806), (68, 318734), (82, 264316), (92, 235586), (104, 208403), (136, 159367), (164, 132158), (169, 128248), (184, 117793), (221, 98072), (299, 72488), (328, 66079), (338, 64124), (391, 55432), (442, 49036), (533, 40664), (598, 36244), (676, 32062), (697, 31096), (782, 27716), (884, 24518), (943, 22984), (1066, 20332), (1196, 18122), (1352, 16031), (1394, 15548), (1564, 13858), (1768, 12259), (1886, 11492), (2132, 10166), (2392, 9061), (2788, 7774), (2873, 7544), (3128, 6929), (3772, 5746), (3887, 5576), (4264, 5083)]