21081735

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8219}}^1$

素因数の和:8252

約数の個数: 32

約数和(自身を含む): 39456000

約数和(自身を除く): 18374265

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8219, 24657, 41095, 73971, 123285, 156161, 221913, 369855, 468483, 780805, 1109565, 1405449, 2342415, 4216347, 7027245, 21081735]

約数ペア:

[(1, 21081735), (3, 7027245), (5, 4216347), (9, 2342415), (15, 1405449), (19, 1109565), (27, 780805), (45, 468483), (57, 369855), (95, 221913), (135, 156161), (171, 123285), (285, 73971), (513, 41095), (855, 24657), (2565, 8219)]