21032672

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2$

素因数の和:132

約数の個数: 72

約数和(自身を含む): 46893168

約数和(自身を除く): 25860496

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 41, 46, 68, 82, 92, 136, 164, 184, 272, 328, 368, 391, 544, 656, 697, 736, 782, 943, 1312, 1394, 1564, 1681, 1886, 2788, 3128, 3362, 3772, 5576, 6256, 6724, 7544, 11152, 12512, 13448, 15088, 16031, 22304, 26896, 28577, 30176, 32062, 38663, 53792, 57154, 64124, 77326, 114308, 128248, 154652, 228616, 256496, 309304, 457232, 512992, 618608, 657271, 914464, 1237216, 1314542, 2629084, 5258168, 10516336, 21032672]

約数ペア:

[(1, 21032672), (2, 10516336), (4, 5258168), (8, 2629084), (16, 1314542), (17, 1237216), (23, 914464), (32, 657271), (34, 618608), (41, 512992), (46, 457232), (68, 309304), (82, 256496), (92, 228616), (136, 154652), (164, 128248), (184, 114308), (272, 77326), (328, 64124), (368, 57154), (391, 53792), (544, 38663), (656, 32062), (697, 30176), (736, 28577), (782, 26896), (943, 22304), (1312, 16031), (1394, 15088), (1564, 13448), (1681, 12512), (1886, 11152), (2788, 7544), (3128, 6724), (3362, 6256), (3772, 5576)]