20565580833

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{172993}}^1$

素因数の和:173063

約数の個数: 64

約数和(自身を含む): 37864926720

約数和(自身を除く): 17299345887

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 111, 119, 153, 189, 259, 333, 357, 459, 629, 777, 999, 1071, 1887, 2331, 3213, 4403, 5661, 6993, 13209, 16983, 39627, 118881, 172993, 518979, 1210951, 1556937, 2940881, 3632853, 4670811, 6400741, 8822643, 10898559, 19202223, 20586167, 26467929, 32695677, 44805187, 57606669, 61758501, 79403787, 108812597, 134415561, 172820007, 185275503, 326437791, 403246683, 555826509, 761688179, 979313373, 1209740049, 2285064537, 2937940119, 6855193611, 20565580833]

約数ペア:

[(1, 20565580833), (3, 6855193611), (7, 2937940119), (9, 2285064537), (17, 1209740049), (21, 979313373), (27, 761688179), (37, 555826509), (51, 403246683), (63, 326437791), (111, 185275503), (119, 172820007), (153, 134415561), (189, 108812597), (259, 79403787), (333, 61758501), (357, 57606669), (459, 44805187), (629, 32695677), (777, 26467929), (999, 20586167), (1071, 19202223), (1887, 10898559), (2331, 8822643), (3213, 6400741), (4403, 4670811), (5661, 3632853), (6993, 2940881), (13209, 1556937), (16983, 1210951), (39627, 518979), (118881, 172993)]