21307506

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2857}}^1$

素因数の和:2986

約数の個数: 32

約数和(自身を含む): 46916928

約数和(自身を除く): 25609422

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 113, 226, 339, 678, 1243, 2486, 2857, 3729, 5714, 7458, 8571, 17142, 31427, 62854, 94281, 188562, 322841, 645682, 968523, 1937046, 3551251, 7102502, 10653753, 21307506]

約数ペア:

[(1, 21307506), (2, 10653753), (3, 7102502), (6, 3551251), (11, 1937046), (22, 968523), (33, 645682), (66, 322841), (113, 188562), (226, 94281), (339, 62854), (678, 31427), (1243, 17142), (2486, 8571), (2857, 7458), (3729, 5714)]