18792225

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^4$

素因数の和:84

約数の個数: 45

約数和(自身を含む): 35762623

約数和(自身を除く): 16970398

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 289, 425, 765, 867, 1275, 1445, 2601, 3825, 4335, 4913, 7225, 13005, 14739, 21675, 24565, 44217, 65025, 73695, 83521, 122825, 221085, 250563, 368475, 417605, 751689, 1105425, 1252815, 2088025, 3758445, 6264075, 18792225]

約数ペア:

[(1, 18792225), (3, 6264075), (5, 3758445), (9, 2088025), (15, 1252815), (17, 1105425), (25, 751689), (45, 417605), (51, 368475), (75, 250563), (85, 221085), (153, 122825), (225, 83521), (255, 73695), (289, 65025), (425, 44217), (765, 24565), (867, 21675), (1275, 14739), (1445, 13005), (2601, 7225), (3825, 4913)]