21685930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44257}}^1$

素因数の和:44278

約数の個数: 24

約数和(自身を含む): 45408708

約数和(自身を除く): 23722778

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44257, 88514, 221285, 309799, 442570, 619598, 1548995, 2168593, 3097990, 4337186, 10842965, 21685930]

約数ペア:

[(1, 21685930), (2, 10842965), (5, 4337186), (7, 3097990), (10, 2168593), (14, 1548995), (35, 619598), (49, 442570), (70, 309799), (98, 221285), (245, 88514), (490, 44257)]