21388794

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{547}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 52608000

約数和(自身を除く): 31219206

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 343, 399, 547, 686, 798, 931, 1029, 1094, 1641, 1862, 2058, 2793, 3282, 3829, 5586, 6517, 7658, 10393, 11487, 13034, 19551, 20786, 22974, 26803, 31179, 39102, 53606, 62358, 72751, 80409, 145502, 160818, 187621, 218253, 375242, 436506, 509257, 562863, 1018514, 1125726, 1527771, 3055542, 3564799, 7129598, 10694397, 21388794]

約数ペア:

[(1, 21388794), (2, 10694397), (3, 7129598), (6, 3564799), (7, 3055542), (14, 1527771), (19, 1125726), (21, 1018514), (38, 562863), (42, 509257), (49, 436506), (57, 375242), (98, 218253), (114, 187621), (133, 160818), (147, 145502), (266, 80409), (294, 72751), (343, 62358), (399, 53606), (547, 39102), (686, 31179), (798, 26803), (931, 22974), (1029, 20786), (1094, 19551), (1641, 13034), (1862, 11487), (2058, 10393), (2793, 7658), (3282, 6517), (3829, 5586)]