19223991

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:448

約数の個数: 36

約数和(自身を含む): 31129800

約数和(自身を除く): 11905809

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 289, 323, 389, 867, 969, 1167, 2601, 2907, 3501, 5491, 6613, 7391, 16473, 19839, 22173, 49419, 59517, 66519, 112421, 125647, 337263, 376941, 1011789, 1130823, 2135999, 6407997, 19223991]

約数ペア:

[(1, 19223991), (3, 6407997), (9, 2135999), (17, 1130823), (19, 1011789), (51, 376941), (57, 337263), (153, 125647), (171, 112421), (289, 66519), (323, 59517), (389, 49419), (867, 22173), (969, 19839), (1167, 16473), (2601, 7391), (2907, 6613), (3501, 5491)]