18211725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 38584832

約数和(自身を除く): 20373107

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 373, 465, 525, 651, 775, 1085, 1119, 1395, 1575, 1865, 1953, 2325, 2611, 3255, 3357, 5425, 5595, 6975, 7833, 9325, 9765, 11563, 13055, 16275, 16785, 23499, 27975, 34689, 39165, 48825, 57815, 65275, 80941, 83925, 104067, 117495, 173445, 195825, 242823, 289075, 404705, 520335, 587475, 728469, 867225, 1214115, 2023525, 2601675, 3642345, 6070575, 18211725]

約数ペア:

[(1, 18211725), (3, 6070575), (5, 3642345), (7, 2601675), (9, 2023525), (15, 1214115), (21, 867225), (25, 728469), (31, 587475), (35, 520335), (45, 404705), (63, 289075), (75, 242823), (93, 195825), (105, 173445), (155, 117495), (175, 104067), (217, 83925), (225, 80941), (279, 65275), (315, 57815), (373, 48825), (465, 39165), (525, 34689), (651, 27975), (775, 23499), (1085, 16785), (1119, 16275), (1395, 13055), (1575, 11563), (1865, 9765), (1953, 9325), (2325, 7833), (2611, 6975), (3255, 5595), (3357, 5425)]