201916971

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{16631}}^1$

素因数の和:16727

約数の個数: 24

約数和(自身を含む): 311351040

約数和(自身を除く): 109434069

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 16631, 49893, 149679, 315989, 947967, 1180801, 2843901, 3542403, 10627209, 22435219, 67305657, 201916971]

約数ペア:

[(1, 201916971), (3, 67305657), (9, 22435219), (19, 10627209), (57, 3542403), (71, 2843901), (171, 1180801), (213, 947967), (639, 315989), (1349, 149679), (4047, 49893), (12141, 16631)]