21760060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3307}}^1$

素因数の和:3370

約数の個数: 48

約数和(自身を含む): 53351424

約数和(自身を除く): 31591364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 3307, 6580, 6614, 13228, 16535, 23149, 33070, 46298, 66140, 92596, 115745, 155429, 231490, 310858, 462980, 621716, 777145, 1088003, 1554290, 2176006, 3108580, 4352012, 5440015, 10880030, 21760060]

約数ペア:

[(1, 21760060), (2, 10880030), (4, 5440015), (5, 4352012), (7, 3108580), (10, 2176006), (14, 1554290), (20, 1088003), (28, 777145), (35, 621716), (47, 462980), (70, 310858), (94, 231490), (140, 155429), (188, 115745), (235, 92596), (329, 66140), (470, 46298), (658, 33070), (940, 23149), (1316, 16535), (1645, 13228), (3290, 6614), (3307, 6580)]