21245410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2659}}^1$

素因数の和:2730

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 20122910

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2659, 3995, 5318, 7990, 13295, 26590, 45203, 90406, 124973, 226015, 249946, 452030, 624865, 1249730, 2124541, 4249082, 10622705, 21245410]

約数ペア:

[(1, 21245410), (2, 10622705), (5, 4249082), (10, 2124541), (17, 1249730), (34, 624865), (47, 452030), (85, 249946), (94, 226015), (170, 124973), (235, 90406), (470, 45203), (799, 26590), (1598, 13295), (2659, 7990), (3995, 5318)]