254470251

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 393389568

約数和(自身を除く): 138919317

約数列:

[1, 3, 7, 21, 131, 233, 393, 397, 699, 917, 1191, 1631, 2751, 2779, 4893, 8337, 30523, 52007, 91569, 92501, 156021, 213661, 277503, 364049, 640983, 647507, 1092147, 1942521, 12117631, 36352893, 84823417, 254470251]

約数ペア:

[(1, 254470251), (3, 84823417), (7, 36352893), (21, 12117631), (131, 1942521), (233, 1092147), (393, 647507), (397, 640983), (699, 364049), (917, 277503), (1191, 213661), (1631, 156021), (2751, 92501), (2779, 91569), (4893, 52007), (8337, 30523)]