21757242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 50440320

約数和(自身を除く): 28683078

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 53, 57, 78, 106, 114, 159, 247, 277, 318, 494, 554, 689, 741, 831, 1007, 1378, 1482, 1662, 2014, 2067, 3021, 3601, 4134, 5263, 6042, 7202, 10526, 10803, 13091, 14681, 15789, 21606, 26182, 29362, 31578, 39273, 44043, 68419, 78546, 88086, 136838, 190853, 205257, 278939, 381706, 410514, 557878, 572559, 836817, 1145118, 1673634, 3626207, 7252414, 10878621, 21757242]

約数ペア:

[(1, 21757242), (2, 10878621), (3, 7252414), (6, 3626207), (13, 1673634), (19, 1145118), (26, 836817), (38, 572559), (39, 557878), (53, 410514), (57, 381706), (78, 278939), (106, 205257), (114, 190853), (159, 136838), (247, 88086), (277, 78546), (318, 68419), (494, 44043), (554, 39273), (689, 31578), (741, 29362), (831, 26182), (1007, 21606), (1378, 15789), (1482, 14681), (1662, 13091), (2014, 10803), (2067, 10526), (3021, 7202), (3601, 6042), (4134, 5263)]