18655245

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 39936000

約数和(自身を除く): 21280755

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1039, 1197, 1995, 2565, 3117, 3591, 5195, 5985, 7273, 9351, 15585, 17955, 19741, 21819, 28053, 36365, 46755, 59223, 65457, 98705, 109095, 138187, 140265, 177669, 196371, 296115, 327285, 414561, 533007, 690935, 888345, 981855, 1243683, 2072805, 2665035, 3731049, 6218415, 18655245]

約数ペア:

[(1, 18655245), (3, 6218415), (5, 3731049), (7, 2665035), (9, 2072805), (15, 1243683), (19, 981855), (21, 888345), (27, 690935), (35, 533007), (45, 414561), (57, 327285), (63, 296115), (95, 196371), (105, 177669), (133, 140265), (135, 138187), (171, 109095), (189, 98705), (285, 65457), (315, 59223), (399, 46755), (513, 36365), (665, 28053), (855, 21819), (945, 19741), (1039, 17955), (1197, 15585), (1995, 9351), (2565, 7273), (3117, 5985), (3591, 5195)]