21208392

素因数分解:

$2^3\times 3^4\times {\mathrm{23}}^1\times {\mathrm{1423}}^1$

素因数の和:1464

約数の個数: 80

約数和(自身を含む): 62029440

約数和(自身を除く): 40821048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 69, 72, 81, 92, 108, 138, 162, 184, 207, 216, 276, 324, 414, 552, 621, 648, 828, 1242, 1423, 1656, 1863, 2484, 2846, 3726, 4269, 4968, 5692, 7452, 8538, 11384, 12807, 14904, 17076, 25614, 32729, 34152, 38421, 51228, 65458, 76842, 98187, 102456, 115263, 130916, 153684, 196374, 230526, 261832, 294561, 307368, 392748, 461052, 589122, 785496, 883683, 922104, 1178244, 1767366, 2356488, 2651049, 3534732, 5302098, 7069464, 10604196, 21208392]

約数ペア:

[(1, 21208392), (2, 10604196), (3, 7069464), (4, 5302098), (6, 3534732), (8, 2651049), (9, 2356488), (12, 1767366), (18, 1178244), (23, 922104), (24, 883683), (27, 785496), (36, 589122), (46, 461052), (54, 392748), (69, 307368), (72, 294561), (81, 261832), (92, 230526), (108, 196374), (138, 153684), (162, 130916), (184, 115263), (207, 102456), (216, 98187), (276, 76842), (324, 65458), (414, 51228), (552, 38421), (621, 34152), (648, 32729), (828, 25614), (1242, 17076), (1423, 14904), (1656, 12807), (1863, 11384), (2484, 8538), (2846, 7452), (3726, 5692), (4269, 4968)]