261766743

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{1153}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 420979200

約数和(自身を除く): 159212457

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 569, 1153, 1707, 3459, 3983, 8071, 10811, 11949, 21907, 24213, 32433, 65721, 75677, 153349, 227031, 460047, 656057, 1968171, 4592399, 12465083, 13777197, 37395249, 87255581, 261766743]

約数ペア:

[(1, 261766743), (3, 87255581), (7, 37395249), (19, 13777197), (21, 12465083), (57, 4592399), (133, 1968171), (399, 656057), (569, 460047), (1153, 227031), (1707, 153349), (3459, 75677), (3983, 65721), (8071, 32433), (10811, 24213), (11949, 21907)]