221085

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^3$

素因数の和:62

約数の個数: 24

約数和(自身を含む): 407160

約数和(自身を除く): 186075

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1445, 2601, 4335, 4913, 13005, 14739, 24565, 44217, 73695, 221085]

約数ペア:

[(1, 221085), (3, 73695), (5, 44217), (9, 24565), (15, 14739), (17, 13005), (45, 4913), (51, 4335), (85, 2601), (153, 1445), (255, 867), (289, 765)]