7871871

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 12812800

約数和(自身を除く): 4940929

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 181, 327, 399, 543, 763, 1267, 2071, 2289, 3439, 3801, 6213, 10317, 14497, 19729, 24073, 43491, 59187, 72219, 138103, 374851, 414309, 1124553, 2623957, 7871871]

約数ペア:

[(1, 7871871), (3, 2623957), (7, 1124553), (19, 414309), (21, 374851), (57, 138103), (109, 72219), (133, 59187), (181, 43491), (327, 24073), (399, 19729), (543, 14497), (763, 10317), (1267, 6213), (2071, 3801), (2289, 3439)]