1687242963

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{190843}}^1$

素因数の和:191274

約数の個数: 16

約数和(自身を含む): 2577157376

約数和(自身を除く): 889914413

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 8841, 190843, 572529, 1335901, 4007703, 80344903, 241034709, 562414321, 1687242963]

約数ペア:

[(1, 1687242963), (3, 562414321), (7, 241034709), (21, 80344903), (421, 4007703), (1263, 1335901), (2947, 572529), (8841, 190843)]