1869885

素因数分解:

$3^9\times 5^1\times {\mathrm{19}}^1$

素因数の和:51

約数の個数: 40

約数和(自身を含む): 3542880

約数和(自身を除く): 1672995

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 405, 513, 729, 855, 1215, 1539, 2187, 2565, 3645, 4617, 6561, 7695, 10935, 13851, 19683, 23085, 32805, 41553, 69255, 98415, 124659, 207765, 373977, 623295, 1869885]

約数ペア:

[(1, 1869885), (3, 623295), (5, 373977), (9, 207765), (15, 124659), (19, 98415), (27, 69255), (45, 41553), (57, 32805), (81, 23085), (95, 19683), (135, 13851), (171, 10935), (243, 7695), (285, 6561), (405, 4617), (513, 3645), (729, 2565), (855, 2187), (1215, 1539)]