28681719

素因数分解:

$3^1\times {\mathrm{11}}^4\times {\mathrm{653}}^1$

素因数の和:700

約数の個数: 20

約数和(自身を含む): 42130680

約数和(自身を除く): 13448961

約数列:

[1, 3, 11, 33, 121, 363, 653, 1331, 1959, 3993, 7183, 14641, 21549, 43923, 79013, 237039, 869143, 2607429, 9560573, 28681719]

約数ペア:

[(1, 28681719), (3, 9560573), (11, 2607429), (33, 869143), (121, 237039), (363, 79013), (653, 43923), (1331, 21549), (1959, 14641), (3993, 7183)]