18696855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 33598080

約数和(自身を除く): 14901225

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 227, 255, 285, 289, 323, 681, 867, 969, 1135, 1445, 1615, 3405, 3859, 4313, 4335, 4845, 5491, 11577, 12939, 16473, 19295, 21565, 27455, 57885, 64695, 65603, 73321, 82365, 196809, 219963, 328015, 366605, 984045, 1099815, 1246457, 3739371, 6232285, 18696855]

約数ペア:

[(1, 18696855), (3, 6232285), (5, 3739371), (15, 1246457), (17, 1099815), (19, 984045), (51, 366605), (57, 328015), (85, 219963), (95, 196809), (227, 82365), (255, 73321), (285, 65603), (289, 64695), (323, 57885), (681, 27455), (867, 21565), (969, 19295), (1135, 16473), (1445, 12939), (1615, 11577), (3405, 5491), (3859, 4845), (4313, 4335)]