211391505

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5237}}^1$

素因数の和:5287

約数の個数: 64

約数和(自身を含む): 422392320

約数和(自身を除く): 211000815

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 585, 621, 897, 1035, 1495, 1755, 2691, 3105, 4485, 5237, 8073, 13455, 15711, 26185, 40365, 47133, 68081, 78555, 120451, 141399, 204243, 235665, 340405, 361353, 602255, 612729, 706995, 1021215, 1084059, 1565863, 1806765, 1838187, 3063645, 3252177, 4697589, 5420295, 7829315, 9190935, 14092767, 16260885, 23487945, 42278301, 70463835, 211391505]

約数ペア:

[(1, 211391505), (3, 70463835), (5, 42278301), (9, 23487945), (13, 16260885), (15, 14092767), (23, 9190935), (27, 7829315), (39, 5420295), (45, 4697589), (65, 3252177), (69, 3063645), (115, 1838187), (117, 1806765), (135, 1565863), (195, 1084059), (207, 1021215), (299, 706995), (345, 612729), (351, 602255), (585, 361353), (621, 340405), (897, 235665), (1035, 204243), (1495, 141399), (1755, 120451), (2691, 78555), (3105, 68081), (4485, 47133), (5237, 40365), (8073, 26185), (13455, 15711)]