21971786

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 36216720

約数和(自身を除く): 14244934

約数列:

[1, 2, 17, 34, 53, 89, 106, 137, 178, 274, 901, 1513, 1802, 2329, 3026, 4658, 4717, 7261, 9434, 12193, 14522, 24386, 80189, 123437, 160378, 207281, 246874, 414562, 646229, 1292458, 10985893, 21971786]

約数ペア:

[(1, 21971786), (2, 10985893), (17, 1292458), (34, 646229), (53, 414562), (89, 246874), (106, 207281), (137, 160378), (178, 123437), (274, 80189), (901, 24386), (1513, 14522), (1802, 12193), (2329, 9434), (3026, 7261), (4658, 4717)]