211557808

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{171719}}^1$

素因数の和:171745

約数の個数: 40

約数和(自身を含む): 511038720

約数和(自身を除く): 299480912

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 171719, 343438, 686876, 1202033, 1373752, 1888909, 2404066, 2747504, 3777818, 4808132, 7555636, 9616264, 13222363, 15111272, 19232528, 26444726, 30222544, 52889452, 105778904, 211557808]

約数ペア:

[(1, 211557808), (2, 105778904), (4, 52889452), (7, 30222544), (8, 26444726), (11, 19232528), (14, 15111272), (16, 13222363), (22, 9616264), (28, 7555636), (44, 4808132), (56, 3777818), (77, 2747504), (88, 2404066), (112, 1888909), (154, 1373752), (176, 1202033), (308, 686876), (616, 343438), (1232, 171719)]