21252504

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 67415040

約数和(自身を除く): 46162536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 37, 39, 42, 52, 56, 74, 78, 84, 91, 104, 111, 148, 156, 168, 182, 222, 259, 263, 273, 296, 312, 364, 444, 481, 518, 526, 546, 728, 777, 789, 888, 962, 1036, 1052, 1092, 1443, 1554, 1578, 1841, 1924, 2072, 2104, 2184, 2886, 3108, 3156, 3367, 3419, 3682, 3848, 5523, 5772, 6216, 6312, 6734, 6838, 7364, 9731, 10101, 10257, 11046, 11544, 13468, 13676, 14728, 19462, 20202, 20514, 22092, 23933, 26936, 27352, 29193, 38924, 40404, 41028, 44184, 47866, 58386, 68117, 71799, 77848, 80808, 82056, 95732, 116772, 126503, 136234, 143598, 191464, 204351, 233544, 253006, 272468, 287196, 379509, 408702, 506012, 544936, 574392, 759018, 817404, 885521, 1012024, 1518036, 1634808, 1771042, 2656563, 3036072, 3542084, 5313126, 7084168, 10626252, 21252504]

約数ペア:

[(1, 21252504), (2, 10626252), (3, 7084168), (4, 5313126), (6, 3542084), (7, 3036072), (8, 2656563), (12, 1771042), (13, 1634808), (14, 1518036), (21, 1012024), (24, 885521), (26, 817404), (28, 759018), (37, 574392), (39, 544936), (42, 506012), (52, 408702), (56, 379509), (74, 287196), (78, 272468), (84, 253006), (91, 233544), (104, 204351), (111, 191464), (148, 143598), (156, 136234), (168, 126503), (182, 116772), (222, 95732), (259, 82056), (263, 80808), (273, 77848), (296, 71799), (312, 68117), (364, 58386), (444, 47866), (481, 44184), (518, 41028), (526, 40404), (546, 38924), (728, 29193), (777, 27352), (789, 26936), (888, 23933), (962, 22092), (1036, 20514), (1052, 20202), (1092, 19462), (1443, 14728), (1554, 13676), (1578, 13468), (1841, 11544), (1924, 11046), (2072, 10257), (2104, 10101), (2184, 9731), (2886, 7364), (3108, 6838), (3156, 6734), (3367, 6312), (3419, 6216), (3682, 5772), (3848, 5523)]