18814523

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 24385536

約数和(自身を除く): 5571013

約数列:

[1, 7, 13, 47, 53, 83, 91, 329, 371, 581, 611, 689, 1079, 2491, 3901, 4277, 4399, 4823, 7553, 17437, 27307, 30793, 32383, 50713, 57187, 206753, 226681, 354991, 400309, 1447271, 2687789, 18814523]

約数ペア:

[(1, 18814523), (7, 2687789), (13, 1447271), (47, 400309), (53, 354991), (83, 226681), (91, 206753), (329, 57187), (371, 50713), (581, 32383), (611, 30793), (689, 27307), (1079, 17437), (2491, 7553), (3901, 4823), (4277, 4399)]