261808001

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1493}}^1$

素因数の和:1601

約数の個数: 32

約数和(自身を含む): 337333248

約数和(自身を除く): 75525247

約数列:

[1, 7, 13, 41, 47, 91, 287, 329, 533, 611, 1493, 1927, 3731, 4277, 10451, 13489, 19409, 25051, 61213, 70171, 135863, 175357, 428491, 491197, 795769, 912223, 2877011, 5570383, 6385561, 20139077, 37401143, 261808001]

約数ペア:

[(1, 261808001), (7, 37401143), (13, 20139077), (41, 6385561), (47, 5570383), (91, 2877011), (287, 912223), (329, 795769), (533, 491197), (611, 428491), (1493, 175357), (1927, 135863), (3731, 70171), (4277, 61213), (10451, 25051), (13489, 19409)]