256721101266

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{6112407173}}^1$

素因数の和:6112407185

約数の個数: 16

約数和(自身を含む): 586791088704

約数和(自身を除く): 330069987438

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 6112407173, 12224814346, 18337221519, 36674443038, 42786850211, 85573700422, 128360550633, 256721101266]

約数ペア:

[(1, 256721101266), (2, 128360550633), (3, 85573700422), (6, 42786850211), (7, 36674443038), (14, 18337221519), (21, 12224814346), (42, 6112407173)]