64978263

素因数分解:

$3^2\times 7^4\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:162

約数の個数: 60

約数和(自身を含む): 114191168

約数和(自身を除く): 49212905

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 97, 147, 217, 279, 291, 343, 441, 651, 679, 873, 1029, 1519, 1953, 2037, 2401, 3007, 3087, 4557, 4753, 6111, 7203, 9021, 10633, 13671, 14259, 21049, 21609, 27063, 31899, 33271, 42777, 63147, 74431, 95697, 99813, 147343, 189441, 223293, 232897, 299439, 442029, 669879, 698691, 1031401, 1326087, 2096073, 3094203, 7219807, 9282609, 21659421, 64978263]

約数ペア:

[(1, 64978263), (3, 21659421), (7, 9282609), (9, 7219807), (21, 3094203), (31, 2096073), (49, 1326087), (63, 1031401), (93, 698691), (97, 669879), (147, 442029), (217, 299439), (279, 232897), (291, 223293), (343, 189441), (441, 147343), (651, 99813), (679, 95697), (873, 74431), (1029, 63147), (1519, 42777), (1953, 33271), (2037, 31899), (2401, 27063), (3007, 21609), (3087, 21049), (4557, 14259), (4753, 13671), (6111, 10633), (7203, 9021)]