19997415

素因数分解:

$3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{887}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 15806745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 167, 501, 835, 887, 1503, 2505, 2661, 4435, 4509, 7515, 7983, 13305, 22545, 23949, 39915, 119745, 148129, 444387, 740645, 1333161, 2221935, 3999483, 6665805, 19997415]

約数ペア:

[(1, 19997415), (3, 6665805), (5, 3999483), (9, 2221935), (15, 1333161), (27, 740645), (45, 444387), (135, 148129), (167, 119745), (501, 39915), (835, 23949), (887, 22545), (1503, 13305), (2505, 7983), (2661, 7515), (4435, 4509)]