1977221907

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 3211905312

約数和(自身を除く): 1234683405

約数列:

[1, 3, 9, 17, 27, 51, 81, 97, 113, 131, 153, 291, 339, 393, 459, 873, 1017, 1179, 1377, 1649, 1921, 2227, 2619, 3051, 3537, 4947, 5763, 6681, 7857, 9153, 10611, 10961, 12707, 14803, 14841, 17289, 20043, 32883, 38121, 44409, 44523, 51867, 60129, 98649, 114363, 133227, 133569, 155601, 180387, 186337, 216019, 251651, 295947, 343089, 399681, 559011, 648057, 754953, 887841, 1029267, 1199043, 1435891, 1677033, 1944171, 2264859, 4307673, 5031099, 5832513, 6794577, 12923019, 15093297, 17497539, 20383731, 24410147, 38769057, 73230441, 116307171, 219691323, 659073969, 1977221907]

約数ペア:

[(1, 1977221907), (3, 659073969), (9, 219691323), (17, 116307171), (27, 73230441), (51, 38769057), (81, 24410147), (97, 20383731), (113, 17497539), (131, 15093297), (153, 12923019), (291, 6794577), (339, 5832513), (393, 5031099), (459, 4307673), (873, 2264859), (1017, 1944171), (1179, 1677033), (1377, 1435891), (1649, 1199043), (1921, 1029267), (2227, 887841), (2619, 754953), (3051, 648057), (3537, 559011), (4947, 399681), (5763, 343089), (6681, 295947), (7857, 251651), (9153, 216019), (10611, 186337), (10961, 180387), (12707, 155601), (14803, 133569), (14841, 133227), (17289, 114363), (20043, 98649), (32883, 60129), (38121, 51867), (44409, 44523)]