21513870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11383}}^1$

素因数の和:11406

約数の個数: 64

約数和(自身を含む): 65571840

約数和(自身を除く): 44057970

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11383, 22766, 34149, 56915, 68298, 79681, 102447, 113830, 159362, 170745, 204894, 239043, 307341, 341490, 398405, 478086, 512235, 614682, 717129, 796810, 1024470, 1195215, 1434258, 1536705, 2151387, 2390430, 3073410, 3585645, 4302774, 7171290, 10756935, 21513870]

約数ペア:

[(1, 21513870), (2, 10756935), (3, 7171290), (5, 4302774), (6, 3585645), (7, 3073410), (9, 2390430), (10, 2151387), (14, 1536705), (15, 1434258), (18, 1195215), (21, 1024470), (27, 796810), (30, 717129), (35, 614682), (42, 512235), (45, 478086), (54, 398405), (63, 341490), (70, 307341), (90, 239043), (105, 204894), (126, 170745), (135, 159362), (189, 113830), (210, 102447), (270, 79681), (315, 68298), (378, 56915), (630, 34149), (945, 22766), (1890, 11383)]