20030913

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 35717760

約数和(自身を除く): 15686847

約数列:

[1, 3, 7, 9, 17, 21, 51, 59, 63, 119, 153, 177, 317, 357, 413, 531, 951, 1003, 1071, 1239, 2219, 2853, 3009, 3717, 5389, 6657, 7021, 9027, 16167, 18703, 19971, 21063, 37723, 48501, 56109, 63189, 113169, 130921, 168327, 317951, 339507, 392763, 953853, 1178289, 2225657, 2861559, 6676971, 20030913]

約数ペア:

[(1, 20030913), (3, 6676971), (7, 2861559), (9, 2225657), (17, 1178289), (21, 953853), (51, 392763), (59, 339507), (63, 317951), (119, 168327), (153, 130921), (177, 113169), (317, 63189), (357, 56109), (413, 48501), (531, 37723), (951, 21063), (1003, 19971), (1071, 18703), (1239, 16167), (2219, 9027), (2853, 7021), (3009, 6657), (3717, 5389)]