19875609

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{661}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 31084872

約数和(自身を除く): 11209263

約数列:

[1, 3, 9, 13, 39, 117, 257, 661, 771, 1983, 2313, 3341, 5949, 8593, 10023, 25779, 30069, 77337, 169877, 509631, 1528893, 2208401, 6625203, 19875609]

約数ペア:

[(1, 19875609), (3, 6625203), (9, 2208401), (13, 1528893), (39, 509631), (117, 169877), (257, 77337), (661, 30069), (771, 25779), (1983, 10023), (2313, 8593), (3341, 5949)]