20291208406

素因数分解:

$2^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{4621}}^1$

素因数の和:4854

約数の個数: 64

約数和(自身を含む): 36672796800

約数和(自身を除く): 16381588394

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 173, 259, 343, 346, 518, 686, 1211, 1813, 2422, 3626, 4621, 6401, 8477, 9242, 12691, 12802, 16954, 25382, 32347, 44807, 59339, 64694, 89614, 118678, 170977, 226429, 313649, 341954, 452858, 627298, 799433, 1196839, 1585003, 1598866, 2195543, 2393678, 3170006, 4391086, 5596031, 8377873, 11192062, 16755746, 29579021, 39172217, 58645111, 59158042, 78344434, 117290222, 207053147, 274205519, 414106294, 548411038, 1449372029, 2898744058, 10145604203, 20291208406]

約数ペア:

[(1, 20291208406), (2, 10145604203), (7, 2898744058), (14, 1449372029), (37, 548411038), (49, 414106294), (74, 274205519), (98, 207053147), (173, 117290222), (259, 78344434), (343, 59158042), (346, 58645111), (518, 39172217), (686, 29579021), (1211, 16755746), (1813, 11192062), (2422, 8377873), (3626, 5596031), (4621, 4391086), (6401, 3170006), (8477, 2393678), (9242, 2195543), (12691, 1598866), (12802, 1585003), (16954, 1196839), (25382, 799433), (32347, 627298), (44807, 452858), (59339, 341954), (64694, 313649), (89614, 226429), (118678, 170977)]