131566197

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1\times {\mathrm{397}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 206221312

約数和(自身を除く): 74655115

約数列:

[1, 3, 7, 21, 43, 129, 301, 367, 397, 903, 1101, 1191, 2569, 2779, 7707, 8337, 15781, 17071, 47343, 51213, 110467, 119497, 145699, 331401, 358491, 437097, 1019893, 3059679, 6265057, 18795171, 43855399, 131566197]

約数ペア:

[(1, 131566197), (3, 43855399), (7, 18795171), (21, 6265057), (43, 3059679), (129, 1019893), (301, 437097), (367, 358491), (397, 331401), (903, 145699), (1101, 119497), (1191, 110467), (2569, 51213), (2779, 47343), (7707, 17071), (8337, 15781)]