21100772

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9787}}^1$

素因数の和:9816

約数の個数: 36

約数和(自身を含む): 46864944

約数和(自身を除く): 25764172

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9787, 19574, 39148, 68509, 107657, 137018, 215314, 274036, 430628, 479563, 753599, 959126, 1507198, 1918252, 3014396, 5275193, 10550386, 21100772]

約数ペア:

[(1, 21100772), (2, 10550386), (4, 5275193), (7, 3014396), (11, 1918252), (14, 1507198), (22, 959126), (28, 753599), (44, 479563), (49, 430628), (77, 274036), (98, 215314), (154, 137018), (196, 107657), (308, 68509), (539, 39148), (1078, 19574), (2156, 9787)]