211671945

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{683}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 376451712

約数和(自身を除く): 164779767

約数列:

[1, 3, 5, 9, 15, 45, 71, 97, 213, 291, 355, 485, 639, 683, 873, 1065, 1455, 2049, 3195, 3415, 4365, 6147, 6887, 10245, 20661, 30735, 34435, 48493, 61983, 66251, 103305, 145479, 198753, 242465, 309915, 331255, 436437, 596259, 727395, 993765, 2182185, 2981295, 4703821, 14111463, 23519105, 42334389, 70557315, 211671945]

約数ペア:

[(1, 211671945), (3, 70557315), (5, 42334389), (9, 23519105), (15, 14111463), (45, 4703821), (71, 2981295), (97, 2182185), (213, 993765), (291, 727395), (355, 596259), (485, 436437), (639, 331255), (683, 309915), (873, 242465), (1065, 198753), (1455, 145479), (2049, 103305), (3195, 66251), (3415, 61983), (4365, 48493), (6147, 34435), (6887, 30735), (10245, 20661)]