20213935

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 29953152

約数和(自身を除く): 9739217

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 371, 595, 641, 901, 1855, 3205, 4487, 4505, 6307, 10897, 22435, 31535, 33973, 54485, 76279, 169865, 237811, 381395, 577541, 1189055, 2887705, 4042787, 20213935]

約数ペア:

[(1, 20213935), (5, 4042787), (7, 2887705), (17, 1189055), (35, 577541), (53, 381395), (85, 237811), (119, 169865), (265, 76279), (371, 54485), (595, 33973), (641, 31535), (901, 22435), (1855, 10897), (3205, 6307), (4487, 4505)]