18831375

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 35773920

約数和(自身を除く): 16942545

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 855, 881, 1125, 1425, 2375, 2643, 4275, 4405, 7125, 7929, 13215, 16739, 21375, 22025, 39645, 50217, 66075, 83695, 110125, 150651, 198225, 251085, 330375, 418475, 753255, 991125, 1255425, 2092375, 3766275, 6277125, 18831375]

約数ペア:

[(1, 18831375), (3, 6277125), (5, 3766275), (9, 2092375), (15, 1255425), (19, 991125), (25, 753255), (45, 418475), (57, 330375), (75, 251085), (95, 198225), (125, 150651), (171, 110125), (225, 83695), (285, 66075), (375, 50217), (475, 39645), (855, 22025), (881, 21375), (1125, 16739), (1425, 13215), (2375, 7929), (2643, 7125), (4275, 4405)]