18749115

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{773}}^1$

素因数の和:809

約数の個数: 72

約数和(自身を含む): 41294448

約数和(自身を除く): 22545333

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 693, 735, 773, 1155, 1617, 2205, 2319, 2695, 3465, 3865, 4851, 5411, 6957, 8085, 8503, 11595, 16233, 24255, 25509, 27055, 34785, 37877, 42515, 48699, 59521, 76527, 81165, 113631, 127545, 178563, 189385, 243495, 297605, 340893, 382635, 416647, 535689, 568155, 892815, 1249941, 1704465, 2083235, 2678445, 3749823, 6249705, 18749115]

約数ペア:

[(1, 18749115), (3, 6249705), (5, 3749823), (7, 2678445), (9, 2083235), (11, 1704465), (15, 1249941), (21, 892815), (33, 568155), (35, 535689), (45, 416647), (49, 382635), (55, 340893), (63, 297605), (77, 243495), (99, 189385), (105, 178563), (147, 127545), (165, 113631), (231, 81165), (245, 76527), (315, 59521), (385, 48699), (441, 42515), (495, 37877), (539, 34785), (693, 27055), (735, 25509), (773, 24255), (1155, 16233), (1617, 11595), (2205, 8503), (2319, 8085), (2695, 6957), (3465, 5411), (3865, 4851)]