78918021

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{577}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 141383424

約数和(自身を除く): 62465403

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 167, 273, 501, 577, 819, 1169, 1503, 1731, 2171, 3507, 4039, 5193, 6513, 7501, 10521, 12117, 15197, 19539, 22503, 36351, 45591, 52507, 67509, 96359, 136773, 157521, 289077, 472563, 674513, 867231, 1252667, 2023539, 3758001, 6070617, 8768669, 11274003, 26306007, 78918021]

約数ペア:

[(1, 78918021), (3, 26306007), (7, 11274003), (9, 8768669), (13, 6070617), (21, 3758001), (39, 2023539), (63, 1252667), (91, 867231), (117, 674513), (167, 472563), (273, 289077), (501, 157521), (577, 136773), (819, 96359), (1169, 67509), (1503, 52507), (1731, 45591), (2171, 36351), (3507, 22503), (4039, 19539), (5193, 15197), (6513, 12117), (7501, 10521)]