21144728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 46725120

約数和(自身を除く): 25580392

約数列:

[1, 2, 4, 8, 11, 22, 23, 31, 44, 46, 62, 88, 92, 124, 184, 248, 253, 337, 341, 506, 674, 682, 713, 1012, 1348, 1364, 1426, 2024, 2696, 2728, 2852, 3707, 5704, 7414, 7751, 7843, 10447, 14828, 15502, 15686, 20894, 29656, 31004, 31372, 41788, 62008, 62744, 83576, 85261, 114917, 170522, 229834, 240281, 341044, 459668, 480562, 682088, 919336, 961124, 1922248, 2643091, 5286182, 10572364, 21144728]

約数ペア:

[(1, 21144728), (2, 10572364), (4, 5286182), (8, 2643091), (11, 1922248), (22, 961124), (23, 919336), (31, 682088), (44, 480562), (46, 459668), (62, 341044), (88, 240281), (92, 229834), (124, 170522), (184, 114917), (248, 85261), (253, 83576), (337, 62744), (341, 62008), (506, 41788), (674, 31372), (682, 31004), (713, 29656), (1012, 20894), (1348, 15686), (1364, 15502), (1426, 14828), (2024, 10447), (2696, 7843), (2728, 7751), (2852, 7414), (3707, 5704)]