21984963

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7321}}^1$

素因数の和:7355

約数の個数: 32

約数和(自身を含む): 39363072

約数和(自身を除く): 17378109

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 7321, 21963, 51247, 80531, 95173, 153741, 241593, 285519, 563717, 666211, 1046903, 1691151, 1998633, 3140709, 7328321, 21984963]

約数ペア:

[(1, 21984963), (3, 7328321), (7, 3140709), (11, 1998633), (13, 1691151), (21, 1046903), (33, 666211), (39, 563717), (77, 285519), (91, 241593), (143, 153741), (231, 95173), (273, 80531), (429, 51247), (1001, 21963), (3003, 7321)]