18930915

素因数分解:

$3^5\times 5^1\times {\mathrm{15581}}^1$

素因数の和:15601

約数の個数: 24

約数和(自身を含む): 34031088

約数和(自身を除く): 15100173

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15581, 46743, 77905, 140229, 233715, 420687, 701145, 1262061, 2103435, 3786183, 6310305, 18930915]

約数ペア:

[(1, 18930915), (3, 6310305), (5, 3786183), (9, 2103435), (15, 1262061), (27, 701145), (45, 420687), (81, 233715), (135, 140229), (243, 77905), (405, 46743), (1215, 15581)]