21678272

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 33624640

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 53, 56, 64, 77, 83, 88, 106, 112, 154, 166, 176, 212, 224, 308, 332, 352, 371, 424, 448, 581, 583, 616, 664, 704, 742, 848, 913, 1162, 1166, 1232, 1328, 1484, 1696, 1826, 2324, 2332, 2464, 2656, 2968, 3392, 3652, 4081, 4399, 4648, 4664, 4928, 5312, 5936, 6391, 7304, 8162, 8798, 9296, 9328, 11872, 12782, 14608, 16324, 17596, 18592, 18656, 23744, 25564, 29216, 30793, 32648, 35192, 37184, 37312, 48389, 51128, 58432, 61586, 65296, 70384, 96778, 102256, 123172, 130592, 140768, 193556, 204512, 246344, 261184, 281536, 338723, 387112, 409024, 492688, 677446, 774224, 985376, 1354892, 1548448, 1970752, 2709784, 3096896, 5419568, 10839136, 21678272]

約数ペア:

[(1, 21678272), (2, 10839136), (4, 5419568), (7, 3096896), (8, 2709784), (11, 1970752), (14, 1548448), (16, 1354892), (22, 985376), (28, 774224), (32, 677446), (44, 492688), (53, 409024), (56, 387112), (64, 338723), (77, 281536), (83, 261184), (88, 246344), (106, 204512), (112, 193556), (154, 140768), (166, 130592), (176, 123172), (212, 102256), (224, 96778), (308, 70384), (332, 65296), (352, 61586), (371, 58432), (424, 51128), (448, 48389), (581, 37312), (583, 37184), (616, 35192), (664, 32648), (704, 30793), (742, 29216), (848, 25564), (913, 23744), (1162, 18656), (1166, 18592), (1232, 17596), (1328, 16324), (1484, 14608), (1696, 12782), (1826, 11872), (2324, 9328), (2332, 9296), (2464, 8798), (2656, 8162), (2968, 7304), (3392, 6391), (3652, 5936), (4081, 5312), (4399, 4928), (4648, 4664)]