21645890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10663}}^1$

素因数の和:10706

約数の個数: 32

約数和(自身を含む): 46068480

約数和(自身を除く): 24422590

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10663, 21326, 53315, 74641, 106630, 149282, 309227, 373205, 618454, 746410, 1546135, 2164589, 3092270, 4329178, 10822945, 21645890]

約数ペア:

[(1, 21645890), (2, 10822945), (5, 4329178), (7, 3092270), (10, 2164589), (14, 1546135), (29, 746410), (35, 618454), (58, 373205), (70, 309227), (145, 149282), (203, 106630), (290, 74641), (406, 53315), (1015, 21326), (2030, 10663)]