210813207921

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{397011691}}^1$

素因数の和:397011756

約数の個数: 12

約数和(自身を含む): 309669119760

約数和(自身を除く): 98855911839

約数列:

[1, 3, 9, 59, 177, 531, 397011691, 1191035073, 3573105219, 23423689769, 70271069307, 210813207921]

約数ペア:

[(1, 210813207921), (3, 70271069307), (9, 23423689769), (59, 3573105219), (177, 1191035073), (531, 397011691)]