20119155

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{883}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 38697984

約数和(自身を除く): 18578829

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 651, 735, 883, 1085, 1519, 2649, 3255, 4415, 4557, 6181, 7595, 13245, 18543, 22785, 27373, 30905, 43267, 82119, 92715, 129801, 136865, 191611, 216335, 410595, 574833, 649005, 958055, 1341277, 2874165, 4023831, 6706385, 20119155]

約数ペア:

[(1, 20119155), (3, 6706385), (5, 4023831), (7, 2874165), (15, 1341277), (21, 958055), (31, 649005), (35, 574833), (49, 410595), (93, 216335), (105, 191611), (147, 136865), (155, 129801), (217, 92715), (245, 82119), (465, 43267), (651, 30905), (735, 27373), (883, 22785), (1085, 18543), (1519, 13245), (2649, 7595), (3255, 6181), (4415, 4557)]