21561162

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{659}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31661238

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 41, 42, 57, 82, 114, 123, 133, 246, 266, 287, 399, 574, 659, 779, 798, 861, 1318, 1558, 1722, 1977, 2337, 3954, 4613, 4674, 5453, 9226, 10906, 12521, 13839, 16359, 25042, 27019, 27678, 32718, 37563, 54038, 75126, 81057, 87647, 162114, 175294, 189133, 262941, 378266, 513361, 525882, 567399, 1026722, 1134798, 1540083, 3080166, 3593527, 7187054, 10780581, 21561162]

約数ペア:

[(1, 21561162), (2, 10780581), (3, 7187054), (6, 3593527), (7, 3080166), (14, 1540083), (19, 1134798), (21, 1026722), (38, 567399), (41, 525882), (42, 513361), (57, 378266), (82, 262941), (114, 189133), (123, 175294), (133, 162114), (246, 87647), (266, 81057), (287, 75126), (399, 54038), (574, 37563), (659, 32718), (779, 27678), (798, 27019), (861, 25042), (1318, 16359), (1558, 13839), (1722, 12521), (1977, 10906), (2337, 9226), (3954, 5453), (4613, 4674)]