20238972159

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{642079}}^1$

素因数の和:642187

約数の個数: 32

約数和(自身を含む): 32874496000

約数和(自身を除く): 12635523841

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 1501, 1659, 4503, 10507, 31521, 642079, 1926237, 4494553, 12199501, 13483659, 36598503, 50724241, 85396507, 152172723, 256189521, 355069687, 963760579, 1065209061, 2891281737, 6746324053, 20238972159]

約数ペア:

[(1, 20238972159), (3, 6746324053), (7, 2891281737), (19, 1065209061), (21, 963760579), (57, 355069687), (79, 256189521), (133, 152172723), (237, 85396507), (399, 50724241), (553, 36598503), (1501, 13483659), (1659, 12199501), (4503, 4494553), (10507, 1926237), (31521, 642079)]