21399246

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 54632448

約数和(自身を除く): 33233202

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 37, 46, 66, 69, 74, 99, 111, 127, 138, 198, 207, 222, 253, 254, 333, 381, 407, 414, 506, 666, 759, 762, 814, 851, 1143, 1221, 1397, 1518, 1702, 2277, 2286, 2442, 2553, 2794, 2921, 3663, 4191, 4554, 4699, 5106, 5842, 7326, 7659, 8382, 8763, 9361, 9398, 12573, 14097, 15318, 17526, 18722, 25146, 26289, 28083, 28194, 32131, 42291, 51689, 52578, 56166, 64262, 84249, 84582, 96393, 103378, 108077, 155067, 168498, 192786, 216154, 289179, 310134, 324231, 465201, 578358, 648462, 930402, 972693, 1188847, 1945386, 2377694, 3566541, 7133082, 10699623, 21399246]

約数ペア:

[(1, 21399246), (2, 10699623), (3, 7133082), (6, 3566541), (9, 2377694), (11, 1945386), (18, 1188847), (22, 972693), (23, 930402), (33, 648462), (37, 578358), (46, 465201), (66, 324231), (69, 310134), (74, 289179), (99, 216154), (111, 192786), (127, 168498), (138, 155067), (198, 108077), (207, 103378), (222, 96393), (253, 84582), (254, 84249), (333, 64262), (381, 56166), (407, 52578), (414, 51689), (506, 42291), (666, 32131), (759, 28194), (762, 28083), (814, 26289), (851, 25146), (1143, 18722), (1221, 17526), (1397, 15318), (1518, 14097), (1702, 12573), (2277, 9398), (2286, 9361), (2442, 8763), (2553, 8382), (2794, 7659), (2921, 7326), (3663, 5842), (4191, 5106), (4554, 4699)]