261189663

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{953}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 412250112

約数和(自身を除く): 151060449

約数列:

[1, 3, 7, 21, 31, 93, 217, 421, 651, 953, 1263, 2859, 2947, 6671, 8841, 13051, 20013, 29543, 39153, 88629, 91357, 206801, 274071, 401213, 620403, 1203639, 2808491, 8425473, 12437603, 37312809, 87063221, 261189663]

約数ペア:

[(1, 261189663), (3, 87063221), (7, 37312809), (21, 12437603), (31, 8425473), (93, 2808491), (217, 1203639), (421, 620403), (651, 401213), (953, 274071), (1263, 206801), (2859, 91357), (2947, 88629), (6671, 39153), (8841, 29543), (13051, 20013)]