16861455

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 34856640

約数和(自身を除く): 17995185

約数列:

[1, 3, 5, 9, 13, 15, 19, 37, 39, 41, 45, 57, 65, 95, 111, 117, 123, 171, 185, 195, 205, 247, 285, 333, 369, 481, 533, 555, 585, 615, 703, 741, 779, 855, 1235, 1443, 1517, 1599, 1665, 1845, 2109, 2223, 2337, 2405, 2665, 3515, 3705, 3895, 4329, 4551, 4797, 6327, 7011, 7215, 7585, 7995, 9139, 10127, 10545, 11115, 11685, 13653, 19721, 21645, 22755, 23985, 27417, 28823, 30381, 31635, 35055, 45695, 50635, 59163, 68265, 82251, 86469, 91143, 98605, 137085, 144115, 151905, 177489, 259407, 295815, 374699, 411255, 432345, 455715, 887445, 1124097, 1297035, 1873495, 3372291, 5620485, 16861455]

約数ペア:

[(1, 16861455), (3, 5620485), (5, 3372291), (9, 1873495), (13, 1297035), (15, 1124097), (19, 887445), (37, 455715), (39, 432345), (41, 411255), (45, 374699), (57, 295815), (65, 259407), (95, 177489), (111, 151905), (117, 144115), (123, 137085), (171, 98605), (185, 91143), (195, 86469), (205, 82251), (247, 68265), (285, 59163), (333, 50635), (369, 45695), (481, 35055), (533, 31635), (555, 30381), (585, 28823), (615, 27417), (703, 23985), (741, 22755), (779, 21645), (855, 19721), (1235, 13653), (1443, 11685), (1517, 11115), (1599, 10545), (1665, 10127), (1845, 9139), (2109, 7995), (2223, 7585), (2337, 7215), (2405, 7011), (2665, 6327), (3515, 4797), (3705, 4551), (3895, 4329)]