21892641

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1553}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 30234624

約数和(自身を除く): 8341983

約数列:

[1, 3, 37, 111, 127, 381, 1553, 4659, 4699, 14097, 57461, 172383, 197231, 591693, 7297547, 21892641]

約数ペア:

[(1, 21892641), (3, 7297547), (37, 591693), (111, 197231), (127, 172383), (381, 57461), (1553, 14097), (4659, 4699)]