21752808

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47367192

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 79, 84, 88, 132, 149, 154, 158, 168, 231, 237, 264, 298, 308, 316, 447, 462, 474, 553, 596, 616, 632, 869, 894, 924, 948, 1043, 1106, 1192, 1639, 1659, 1738, 1788, 1848, 1896, 2086, 2212, 2607, 3129, 3278, 3318, 3476, 3576, 4172, 4424, 4917, 5214, 6083, 6258, 6556, 6636, 6952, 8344, 9834, 10428, 11473, 11771, 12166, 12516, 13112, 13272, 18249, 19668, 20856, 22946, 23542, 24332, 25032, 34419, 35313, 36498, 39336, 45892, 47084, 48664, 68838, 70626, 72996, 82397, 91784, 94168, 129481, 137676, 141252, 145992, 164794, 247191, 258962, 275352, 282504, 329588, 388443, 494382, 517924, 659176, 776886, 906367, 988764, 1035848, 1553772, 1812734, 1977528, 2719101, 3107544, 3625468, 5438202, 7250936, 10876404, 21752808]

約数ペア:

[(1, 21752808), (2, 10876404), (3, 7250936), (4, 5438202), (6, 3625468), (7, 3107544), (8, 2719101), (11, 1977528), (12, 1812734), (14, 1553772), (21, 1035848), (22, 988764), (24, 906367), (28, 776886), (33, 659176), (42, 517924), (44, 494382), (56, 388443), (66, 329588), (77, 282504), (79, 275352), (84, 258962), (88, 247191), (132, 164794), (149, 145992), (154, 141252), (158, 137676), (168, 129481), (231, 94168), (237, 91784), (264, 82397), (298, 72996), (308, 70626), (316, 68838), (447, 48664), (462, 47084), (474, 45892), (553, 39336), (596, 36498), (616, 35313), (632, 34419), (869, 25032), (894, 24332), (924, 23542), (948, 22946), (1043, 20856), (1106, 19668), (1192, 18249), (1639, 13272), (1659, 13112), (1738, 12516), (1788, 12166), (1848, 11771), (1896, 11473), (2086, 10428), (2212, 9834), (2607, 8344), (3129, 6952), (3278, 6636), (3318, 6556), (3476, 6258), (3576, 6083), (4172, 5214), (4424, 4917)]