20740804

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10433}}^1$

素因数の和:10515

約数の個数: 24

約数和(自身を含む): 42069888

約数和(自身を除く): 21329084

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10433, 20866, 41732, 73031, 146062, 292124, 740743, 1481486, 2962972, 5185201, 10370402, 20740804]

約数ペア:

[(1, 20740804), (2, 10370402), (4, 5185201), (7, 2962972), (14, 1481486), (28, 740743), (71, 292124), (142, 146062), (284, 73031), (497, 41732), (994, 20866), (1988, 10433)]