21005918184

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{43237}}^1$

素因数の和:43930

約数の個数: 64

約数和(自身を含む): 54293091840

約数和(自身を除く): 33287173656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 653, 744, 1306, 1959, 2612, 3918, 5224, 7836, 15672, 20243, 40486, 43237, 60729, 80972, 86474, 121458, 129711, 161944, 172948, 242916, 259422, 345896, 485832, 518844, 1037688, 1340347, 2680694, 4021041, 5361388, 8042082, 10722776, 16084164, 28233761, 32168328, 56467522, 84701283, 112935044, 169402566, 225870088, 338805132, 677610264, 875246591, 1750493182, 2625739773, 3500986364, 5251479546, 7001972728, 10502959092, 21005918184]

約数ペア:

[(1, 21005918184), (2, 10502959092), (3, 7001972728), (4, 5251479546), (6, 3500986364), (8, 2625739773), (12, 1750493182), (24, 875246591), (31, 677610264), (62, 338805132), (93, 225870088), (124, 169402566), (186, 112935044), (248, 84701283), (372, 56467522), (653, 32168328), (744, 28233761), (1306, 16084164), (1959, 10722776), (2612, 8042082), (3918, 5361388), (5224, 4021041), (7836, 2680694), (15672, 1340347), (20243, 1037688), (40486, 518844), (43237, 485832), (60729, 345896), (80972, 259422), (86474, 242916), (121458, 172948), (129711, 161944)]