215515898

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 378853920

約数和(自身を除く): 163338022

約数列:

[1, 2, 13, 19, 26, 37, 38, 74, 169, 247, 338, 481, 494, 703, 907, 962, 1406, 1814, 3211, 6253, 6422, 9139, 11791, 12506, 17233, 18278, 23582, 33559, 34466, 67118, 118807, 153283, 224029, 237614, 306566, 436267, 448058, 637621, 872534, 1275242, 2912377, 5671471, 5824754, 8289073, 11342942, 16578146, 107757949, 215515898]

約数ペア:

[(1, 215515898), (2, 107757949), (13, 16578146), (19, 11342942), (26, 8289073), (37, 5824754), (38, 5671471), (74, 2912377), (169, 1275242), (247, 872534), (338, 637621), (481, 448058), (494, 436267), (703, 306566), (907, 237614), (962, 224029), (1406, 153283), (1814, 118807), (3211, 67118), (6253, 34466), (6422, 33559), (9139, 23582), (11791, 18278), (12506, 17233)]