16797921

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 27353088

約数和(自身を除く): 10555167

約数列:

[1, 3, 7, 17, 21, 51, 119, 211, 223, 357, 633, 669, 1477, 1561, 3587, 3791, 4431, 4683, 10761, 11373, 25109, 26537, 47053, 75327, 79611, 141159, 329371, 799901, 988113, 2399703, 5599307, 16797921]

約数ペア:

[(1, 16797921), (3, 5599307), (7, 2399703), (17, 988113), (21, 799901), (51, 329371), (119, 141159), (211, 79611), (223, 75327), (357, 47053), (633, 26537), (669, 25109), (1477, 11373), (1561, 10761), (3587, 4683), (3791, 4431)]