21056693

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 6360907

約数列:

[1, 7, 17, 19, 67, 119, 133, 139, 323, 469, 973, 1139, 1273, 2261, 2363, 2641, 7973, 8911, 9313, 16541, 18487, 21641, 44897, 65191, 151487, 158321, 176947, 314279, 1108247, 1238629, 3008099, 21056693]

約数ペア:

[(1, 21056693), (7, 3008099), (17, 1238629), (19, 1108247), (67, 314279), (119, 176947), (133, 158321), (139, 151487), (323, 65191), (469, 44897), (973, 21641), (1139, 18487), (1273, 16541), (2261, 9313), (2363, 8911), (2641, 7973)]