21608580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51449}}^1$

素因数の和:51468

約数の個数: 48

約数和(自身を含む): 69148800

約数和(自身を除く): 47540220

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, 51449, 102898, 154347, 205796, 257245, 308694, 360143, 514490, 617388, 720286, 771735, 1028980, 1080429, 1440572, 1543470, 1800715, 2160858, 3086940, 3601430, 4321716, 5402145, 7202860, 10804290, 21608580]

約数ペア:

[(1, 21608580), (2, 10804290), (3, 7202860), (4, 5402145), (5, 4321716), (6, 3601430), (7, 3086940), (10, 2160858), (12, 1800715), (14, 1543470), (15, 1440572), (20, 1080429), (21, 1028980), (28, 771735), (30, 720286), (35, 617388), (42, 514490), (60, 360143), (70, 308694), (84, 257245), (105, 205796), (140, 154347), (210, 102898), (420, 51449)]