21805620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1601}}^1$

素因数の和:1840

約数の個数: 48

約数和(自身を含む): 61363008

約数和(自身を除く): 39557388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 227, 454, 681, 908, 1135, 1362, 1601, 2270, 2724, 3202, 3405, 4540, 4803, 6404, 6810, 8005, 9606, 13620, 16010, 19212, 24015, 32020, 48030, 96060, 363427, 726854, 1090281, 1453708, 1817135, 2180562, 3634270, 4361124, 5451405, 7268540, 10902810, 21805620]

約数ペア:

[(1, 21805620), (2, 10902810), (3, 7268540), (4, 5451405), (5, 4361124), (6, 3634270), (10, 2180562), (12, 1817135), (15, 1453708), (20, 1090281), (30, 726854), (60, 363427), (227, 96060), (454, 48030), (681, 32020), (908, 24015), (1135, 19212), (1362, 16010), (1601, 13620), (2270, 9606), (2724, 8005), (3202, 6810), (3405, 6404), (4540, 4803)]