21095340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50227}}^1$

素因数の和:50246

約数の個数: 48

約数和(自身を含む): 67506432

約数和(自身を除く): 46411092

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, 50227, 100454, 150681, 200908, 251135, 301362, 351589, 502270, 602724, 703178, 753405, 1004540, 1054767, 1406356, 1506810, 1757945, 2109534, 3013620, 3515890, 4219068, 5273835, 7031780, 10547670, 21095340]

約数ペア:

[(1, 21095340), (2, 10547670), (3, 7031780), (4, 5273835), (5, 4219068), (6, 3515890), (7, 3013620), (10, 2109534), (12, 1757945), (14, 1506810), (15, 1406356), (20, 1054767), (21, 1004540), (28, 753405), (30, 703178), (35, 602724), (42, 502270), (60, 351589), (70, 301362), (84, 251135), (105, 200908), (140, 150681), (210, 100454), (420, 50227)]