19202001

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1901}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 32379648

約数和(自身を除く): 13177647

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 1901, 3367, 5703, 10101, 13307, 24713, 39921, 70337, 74139, 172991, 211011, 492359, 518973, 914381, 1477077, 2743143, 6400667, 19202001]

約数ペア:

[(1, 19202001), (3, 6400667), (7, 2743143), (13, 1477077), (21, 914381), (37, 518973), (39, 492359), (91, 211011), (111, 172991), (259, 74139), (273, 70337), (481, 39921), (777, 24713), (1443, 13307), (1901, 10101), (3367, 5703)]