221347929

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15349}}^1$

素因数の和:15405

約数の個数: 32

約数和(自身を含む): 353664000

約数和(自身を除く): 132316071

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 209, 253, 437, 627, 759, 1311, 4807, 14421, 15349, 46047, 168839, 291631, 353027, 506517, 874893, 1059081, 3207941, 3883297, 6707513, 9623823, 11649891, 20122539, 73782643, 221347929]

約数ペア:

[(1, 221347929), (3, 73782643), (11, 20122539), (19, 11649891), (23, 9623823), (33, 6707513), (57, 3883297), (69, 3207941), (209, 1059081), (253, 874893), (437, 506517), (627, 353027), (759, 291631), (1311, 168839), (4807, 46047), (14421, 15349)]