20118454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 33516000

約数和(自身を除く): 13397546

約数列:

[1, 2, 19, 37, 38, 41, 74, 82, 349, 698, 703, 779, 1406, 1517, 1558, 3034, 6631, 12913, 13262, 14309, 25826, 28618, 28823, 57646, 245347, 271871, 490694, 529433, 543742, 1058866, 10059227, 20118454]

約数ペア:

[(1, 20118454), (2, 10059227), (19, 1058866), (37, 543742), (38, 529433), (41, 490694), (74, 271871), (82, 245347), (349, 57646), (698, 28823), (703, 28618), (779, 25826), (1406, 14309), (1517, 13262), (1558, 12913), (3034, 6631)]