21980571651

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{19501}}^1$

素因数の和:19716

約数の個数: 48

約数和(自身を含む): 34499818080

約数和(自身を除く): 12519246429

約数列:

[1, 3, 9, 17, 51, 53, 139, 153, 159, 417, 477, 901, 1251, 2363, 2703, 7089, 7367, 8109, 19501, 21267, 22101, 58503, 66303, 125239, 175509, 331517, 375717, 994551, 1033553, 1127151, 2710639, 2983653, 3100659, 8131917, 9301977, 17570401, 24395751, 46080863, 52711203, 138242589, 143663867, 158133609, 414727767, 430991601, 1292974803, 2442285739, 7326857217, 21980571651]

約数ペア:

[(1, 21980571651), (3, 7326857217), (9, 2442285739), (17, 1292974803), (51, 430991601), (53, 414727767), (139, 158133609), (153, 143663867), (159, 138242589), (417, 52711203), (477, 46080863), (901, 24395751), (1251, 17570401), (2363, 9301977), (2703, 8131917), (7089, 3100659), (7367, 2983653), (8109, 2710639), (19501, 1127151), (21267, 1033553), (22101, 994551), (58503, 375717), (66303, 331517), (125239, 175509)]