19722969

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16477}}^1$

素因数の和:16509

約数の個数: 24

約数和(自身を含む): 34274240

約数和(自身を除く): 14551271

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16477, 49431, 115339, 148293, 313063, 346017, 939189, 1038051, 2191441, 2817567, 6574323, 19722969]

約数ペア:

[(1, 19722969), (3, 6574323), (7, 2817567), (9, 2191441), (19, 1038051), (21, 939189), (57, 346017), (63, 313063), (133, 148293), (171, 115339), (399, 49431), (1197, 16477)]