21702472

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 47822400

約数和(自身を除く): 26119928

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 89, 136, 163, 178, 187, 326, 356, 374, 652, 712, 748, 979, 1304, 1496, 1513, 1793, 1958, 2771, 3026, 3586, 3916, 5542, 6052, 7172, 7832, 11084, 12104, 14344, 14507, 16643, 22168, 29014, 30481, 33286, 58028, 60962, 66572, 116056, 121924, 133144, 159577, 243848, 246619, 319154, 493238, 638308, 986476, 1276616, 1972952, 2712809, 5425618, 10851236, 21702472]

約数ペア:

[(1, 21702472), (2, 10851236), (4, 5425618), (8, 2712809), (11, 1972952), (17, 1276616), (22, 986476), (34, 638308), (44, 493238), (68, 319154), (88, 246619), (89, 243848), (136, 159577), (163, 133144), (178, 121924), (187, 116056), (326, 66572), (356, 60962), (374, 58028), (652, 33286), (712, 30481), (748, 29014), (979, 22168), (1304, 16643), (1496, 14507), (1513, 14344), (1793, 12104), (1958, 11084), (2771, 7832), (3026, 7172), (3586, 6052), (3916, 5542)]