285877221

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 455270400

約数和(自身を除く): 169393179

約数列:

[1, 3, 7, 21, 49, 79, 103, 147, 237, 239, 309, 553, 717, 721, 1659, 1673, 2163, 3871, 5019, 5047, 8137, 11613, 11711, 15141, 18881, 24411, 24617, 35133, 56643, 56959, 73851, 132167, 170877, 172319, 396501, 398713, 516957, 925169, 1196139, 1206233, 1944743, 2775507, 3618699, 5834229, 13613201, 40839603, 95292407, 285877221]

約数ペア:

[(1, 285877221), (3, 95292407), (7, 40839603), (21, 13613201), (49, 5834229), (79, 3618699), (103, 2775507), (147, 1944743), (237, 1206233), (239, 1196139), (309, 925169), (553, 516957), (717, 398713), (721, 396501), (1659, 172319), (1673, 170877), (2163, 132167), (3871, 73851), (5019, 56959), (5047, 56643), (8137, 35133), (11613, 24617), (11711, 24411), (15141, 18881)]