21545496

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 70424640

約数和(自身を除く): 48879144

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 42, 49, 56, 62, 63, 72, 84, 93, 98, 124, 126, 147, 168, 186, 196, 197, 217, 248, 252, 279, 294, 372, 392, 394, 434, 441, 504, 558, 588, 591, 651, 744, 788, 868, 882, 1116, 1176, 1182, 1302, 1379, 1519, 1576, 1736, 1764, 1773, 1953, 2232, 2364, 2604, 2758, 3038, 3528, 3546, 3906, 4137, 4557, 4728, 5208, 5516, 6076, 6107, 7092, 7812, 8274, 9114, 9653, 11032, 12152, 12214, 12411, 13671, 14184, 15624, 16548, 18228, 18321, 19306, 24428, 24822, 27342, 28959, 33096, 36456, 36642, 38612, 42749, 48856, 49644, 54684, 54963, 57918, 73284, 77224, 85498, 86877, 99288, 109368, 109926, 115836, 128247, 146568, 170996, 173754, 219852, 231672, 256494, 299243, 341992, 347508, 384741, 439704, 512988, 598486, 695016, 769482, 897729, 1025976, 1196972, 1538964, 1795458, 2393944, 2693187, 3077928, 3590916, 5386374, 7181832, 10772748, 21545496]

約数ペア:

[(1, 21545496), (2, 10772748), (3, 7181832), (4, 5386374), (6, 3590916), (7, 3077928), (8, 2693187), (9, 2393944), (12, 1795458), (14, 1538964), (18, 1196972), (21, 1025976), (24, 897729), (28, 769482), (31, 695016), (36, 598486), (42, 512988), (49, 439704), (56, 384741), (62, 347508), (63, 341992), (72, 299243), (84, 256494), (93, 231672), (98, 219852), (124, 173754), (126, 170996), (147, 146568), (168, 128247), (186, 115836), (196, 109926), (197, 109368), (217, 99288), (248, 86877), (252, 85498), (279, 77224), (294, 73284), (372, 57918), (392, 54963), (394, 54684), (434, 49644), (441, 48856), (504, 42749), (558, 38612), (588, 36642), (591, 36456), (651, 33096), (744, 28959), (788, 27342), (868, 24822), (882, 24428), (1116, 19306), (1176, 18321), (1182, 18228), (1302, 16548), (1379, 15624), (1519, 14184), (1576, 13671), (1736, 12411), (1764, 12214), (1773, 12152), (1953, 11032), (2232, 9653), (2364, 9114), (2604, 8274), (2758, 7812), (3038, 7092), (3528, 6107), (3546, 6076), (3906, 5516), (4137, 5208), (4557, 4728)]