279826491

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{1021}}^1$

素因数の和:1483

約数の個数: 32

約数和(自身を含む): 441634816

約数和(自身を除く): 161808325

約数列:

[1, 3, 7, 21, 31, 93, 217, 421, 651, 1021, 1263, 2947, 3063, 7147, 8841, 13051, 21441, 31651, 39153, 91357, 94953, 221557, 274071, 429841, 664671, 1289523, 3008887, 9026661, 13325071, 39975213, 93275497, 279826491]

約数ペア:

[(1, 279826491), (3, 93275497), (7, 39975213), (21, 13325071), (31, 9026661), (93, 3008887), (217, 1289523), (421, 664671), (651, 429841), (1021, 274071), (1263, 221557), (2947, 94953), (3063, 91357), (7147, 39153), (8841, 31651), (13051, 21441)]