51587781

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 85622784

約数和(自身を除く): 34035003

約数列:

[1, 3, 7, 21, 23, 29, 69, 87, 127, 161, 203, 381, 483, 609, 667, 841, 889, 2001, 2523, 2667, 2921, 3683, 4669, 5887, 8763, 11049, 14007, 17661, 19343, 20447, 25781, 58029, 61341, 77343, 84709, 106807, 135401, 254127, 320421, 406203, 592963, 747649, 1778889, 2242947, 2456561, 7369683, 17195927, 51587781]

約数ペア:

[(1, 51587781), (3, 17195927), (7, 7369683), (21, 2456561), (23, 2242947), (29, 1778889), (69, 747649), (87, 592963), (127, 406203), (161, 320421), (203, 254127), (381, 135401), (483, 106807), (609, 84709), (667, 77343), (841, 61341), (889, 58029), (2001, 25781), (2523, 20447), (2667, 19343), (2921, 17661), (3683, 14007), (4669, 11049), (5887, 8763)]