16561719

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 25927680

約数和(自身を除く): 9365961

約数列:

[1, 3, 9, 27, 31, 47, 93, 141, 279, 421, 423, 837, 1263, 1269, 1457, 3789, 4371, 11367, 13051, 13113, 19787, 39153, 39339, 59361, 117459, 178083, 352377, 534249, 613397, 1840191, 5520573, 16561719]

約数ペア:

[(1, 16561719), (3, 5520573), (9, 1840191), (27, 613397), (31, 534249), (47, 352377), (93, 178083), (141, 117459), (279, 59361), (421, 39339), (423, 39153), (837, 19787), (1263, 13113), (1269, 13051), (1457, 11367), (3789, 4371)]