78541071

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 131639904

約数和(自身を除く): 53098833

約数列:

[1, 3, 7, 17, 21, 49, 51, 53, 119, 147, 159, 357, 371, 593, 833, 901, 1113, 1779, 2499, 2597, 2703, 4151, 6307, 7791, 10081, 12453, 18921, 29057, 30243, 31429, 44149, 70567, 87171, 94287, 132447, 211701, 220003, 493969, 534293, 660009, 1481907, 1540021, 1602879, 3740051, 4620063, 11220153, 26180357, 78541071]

約数ペア:

[(1, 78541071), (3, 26180357), (7, 11220153), (17, 4620063), (21, 3740051), (49, 1602879), (51, 1540021), (53, 1481907), (119, 660009), (147, 534293), (159, 493969), (357, 220003), (371, 211701), (593, 132447), (833, 94287), (901, 87171), (1113, 70567), (1779, 44149), (2499, 31429), (2597, 30243), (2703, 29057), (4151, 18921), (6307, 12453), (7791, 10081)]