201842865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640771}}^1$

素因数の和:640789

約数の個数: 24

約数和(自身を含む): 399841728

約数和(自身を除く): 197998863

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640771, 1922313, 3203855, 4485397, 5766939, 9611565, 13456191, 22426985, 28834695, 40368573, 67280955, 201842865]

約数ペア:

[(1, 201842865), (3, 67280955), (5, 40368573), (7, 28834695), (9, 22426985), (15, 13456191), (21, 9611565), (35, 5766939), (45, 4485397), (63, 3203855), (105, 1922313), (315, 640771)]