16721235

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 32931360

約数和(自身を除く): 16210125

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 53, 57, 81, 95, 123, 135, 159, 171, 205, 265, 285, 369, 405, 477, 513, 615, 779, 795, 855, 1007, 1107, 1431, 1539, 1845, 2173, 2337, 2385, 2565, 3021, 3321, 3895, 4293, 5035, 5535, 6519, 7011, 7155, 7695, 9063, 10865, 11685, 15105, 16605, 19557, 21033, 21465, 27189, 32595, 35055, 41287, 45315, 58671, 63099, 81567, 97785, 105165, 123861, 135945, 176013, 206435, 293355, 315495, 371583, 407835, 619305, 880065, 1114749, 1857915, 3344247, 5573745, 16721235]

約数ペア:

[(1, 16721235), (3, 5573745), (5, 3344247), (9, 1857915), (15, 1114749), (19, 880065), (27, 619305), (41, 407835), (45, 371583), (53, 315495), (57, 293355), (81, 206435), (95, 176013), (123, 135945), (135, 123861), (159, 105165), (171, 97785), (205, 81567), (265, 63099), (285, 58671), (369, 45315), (405, 41287), (477, 35055), (513, 32595), (615, 27189), (779, 21465), (795, 21033), (855, 19557), (1007, 16605), (1107, 15105), (1431, 11685), (1539, 10865), (1845, 9063), (2173, 7695), (2337, 7155), (2385, 7011), (2565, 6519), (3021, 5535), (3321, 5035), (3895, 4293)]