19772973

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 31979584

約数和(自身を除く): 12206611

約数列:

[1, 3, 9, 11, 33, 67, 99, 121, 201, 271, 363, 603, 737, 813, 1089, 2211, 2439, 2981, 6633, 8107, 8943, 18157, 24321, 26829, 32791, 54471, 72963, 98373, 163413, 199727, 295119, 599181, 1797543, 2196997, 6590991, 19772973]

約数ペア:

[(1, 19772973), (3, 6590991), (9, 2196997), (11, 1797543), (33, 599181), (67, 295119), (99, 199727), (121, 163413), (201, 98373), (271, 72963), (363, 54471), (603, 32791), (737, 26829), (813, 24321), (1089, 18157), (2211, 8943), (2439, 8107), (2981, 6633)]