21188412

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28027}}^1$

素因数の和:28047

約数の個数: 48

約数和(自身を含む): 62782720

約数和(自身を除く): 41594308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28027, 56054, 84081, 112108, 168162, 196189, 252243, 336324, 392378, 504486, 588567, 756729, 784756, 1008972, 1177134, 1513458, 1765701, 2354268, 3026916, 3531402, 5297103, 7062804, 10594206, 21188412]

約数ペア:

[(1, 21188412), (2, 10594206), (3, 7062804), (4, 5297103), (6, 3531402), (7, 3026916), (9, 2354268), (12, 1765701), (14, 1513458), (18, 1177134), (21, 1008972), (27, 784756), (28, 756729), (36, 588567), (42, 504486), (54, 392378), (63, 336324), (84, 252243), (108, 196189), (126, 168162), (189, 112108), (252, 84081), (378, 56054), (756, 28027)]