21634620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51511}}^1$

素因数の和:51530

約数の個数: 48

約数和(自身を含む): 69232128

約数和(自身を除く): 47597508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 51511, 103022, 154533, 206044, 257555, 309066, 360577, 515110, 618132, 721154, 772665, 1030220, 1081731, 1442308, 1545330, 1802885, 2163462, 3090660, 3605770, 4326924, 5408655, 7211540, 10817310, 21634620]

約数ペア:

[(1, 21634620), (2, 10817310), (3, 7211540), (4, 5408655), (5, 4326924), (6, 3605770), (7, 3090660), (10, 2163462), (12, 1802885), (14, 1545330), (15, 1442308), (20, 1081731), (21, 1030220), (28, 772665), (30, 721154), (35, 618132), (42, 515110), (60, 360577), (70, 309066), (84, 257555), (105, 206044), (140, 154533), (210, 103022), (420, 51511)]