21551145512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{509}}^1\times {\mathrm{919}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 43748208000

約数和(自身を除く): 22197062488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 443, 509, 886, 919, 1018, 1772, 1838, 2036, 3544, 3676, 4072, 5759, 6617, 7352, 11518, 11947, 13234, 23036, 23894, 26468, 46072, 47788, 52936, 95576, 225487, 407117, 450974, 467771, 814234, 901948, 935542, 1628468, 1803896, 1871084, 2931331, 3256936, 3742168, 5292521, 5862662, 6081023, 10585042, 11725324, 12162046, 21170084, 23450648, 24324092, 42340168, 48648184, 207222553, 414445106, 828890212, 1657780424, 2693893189, 5387786378, 10775572756, 21551145512]

約数ペア:

[(1, 21551145512), (2, 10775572756), (4, 5387786378), (8, 2693893189), (13, 1657780424), (26, 828890212), (52, 414445106), (104, 207222553), (443, 48648184), (509, 42340168), (886, 24324092), (919, 23450648), (1018, 21170084), (1772, 12162046), (1838, 11725324), (2036, 10585042), (3544, 6081023), (3676, 5862662), (4072, 5292521), (5759, 3742168), (6617, 3256936), (7352, 2931331), (11518, 1871084), (11947, 1803896), (13234, 1628468), (23036, 935542), (23894, 901948), (26468, 814234), (46072, 467771), (47788, 450974), (52936, 407117), (95576, 225487)]