20916818835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{24151}}^1$

素因数の和:24380

約数の個数: 64

約数和(自身を含む): 37978536960

約数和(自身を除く): 17061718125

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 181, 319, 435, 543, 905, 957, 1595, 1991, 2715, 4785, 5249, 5973, 9955, 15747, 24151, 26245, 29865, 57739, 72453, 78735, 120755, 173217, 265661, 288695, 362265, 700379, 796983, 866085, 1328305, 2101137, 3501895, 3984915, 4371331, 7704169, 10505685, 13113993, 21856655, 23112507, 38520845, 48084641, 65569965, 115562535, 126768599, 144253923, 240423205, 380305797, 633842995, 721269615, 1394454589, 1901528985, 4183363767, 6972272945, 20916818835]

約数ペア:

[(1, 20916818835), (3, 6972272945), (5, 4183363767), (11, 1901528985), (15, 1394454589), (29, 721269615), (33, 633842995), (55, 380305797), (87, 240423205), (145, 144253923), (165, 126768599), (181, 115562535), (319, 65569965), (435, 48084641), (543, 38520845), (905, 23112507), (957, 21856655), (1595, 13113993), (1991, 10505685), (2715, 7704169), (4785, 4371331), (5249, 3984915), (5973, 3501895), (9955, 2101137), (15747, 1328305), (24151, 866085), (26245, 796983), (29865, 700379), (57739, 362265), (72453, 288695), (78735, 265661), (120755, 173217)]