21820788

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{55103}}^1$

素因数の和:55124

約数の個数: 36

約数和(自身を含む): 60173568

約数和(自身を除く): 38352780

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 55103, 110206, 165309, 220412, 330618, 495927, 606133, 661236, 991854, 1212266, 1818399, 1983708, 2424532, 3636798, 5455197, 7273596, 10910394, 21820788]

約数ペア:

[(1, 21820788), (2, 10910394), (3, 7273596), (4, 5455197), (6, 3636798), (9, 2424532), (11, 1983708), (12, 1818399), (18, 1212266), (22, 991854), (33, 661236), (36, 606133), (44, 495927), (66, 330618), (99, 220412), (132, 165309), (198, 110206), (396, 55103)]