21199710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 58609152

約数和(自身を除く): 37409442

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 643, 785, 942, 1099, 1286, 1570, 1929, 2198, 2355, 3215, 3297, 3858, 4501, 4710, 5495, 6430, 6594, 9002, 9645, 10990, 13503, 16485, 19290, 22505, 27006, 32970, 45010, 67515, 100951, 135030, 201902, 302853, 504755, 605706, 706657, 1009510, 1413314, 1514265, 2119971, 3028530, 3533285, 4239942, 7066570, 10599855, 21199710]

約数ペア:

[(1, 21199710), (2, 10599855), (3, 7066570), (5, 4239942), (6, 3533285), (7, 3028530), (10, 2119971), (14, 1514265), (15, 1413314), (21, 1009510), (30, 706657), (35, 605706), (42, 504755), (70, 302853), (105, 201902), (157, 135030), (210, 100951), (314, 67515), (471, 45010), (643, 32970), (785, 27006), (942, 22505), (1099, 19290), (1286, 16485), (1570, 13503), (1929, 10990), (2198, 9645), (2355, 9002), (3215, 6594), (3297, 6430), (3858, 5495), (4501, 4710)]