21479836

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3779}}^1$

素因数の和:3826

約数の個数: 36

約数和(自身を含む): 45246600

約数和(自身を除く): 23766764

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3779, 5684, 7558, 15116, 26453, 52906, 105812, 109591, 185171, 219182, 370342, 438364, 740684, 767137, 1534274, 3068548, 5369959, 10739918, 21479836]

約数ペア:

[(1, 21479836), (2, 10739918), (4, 5369959), (7, 3068548), (14, 1534274), (28, 767137), (29, 740684), (49, 438364), (58, 370342), (98, 219182), (116, 185171), (196, 109591), (203, 105812), (406, 52906), (812, 26453), (1421, 15116), (2842, 7558), (3779, 5684)]