20156164959

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{238109}}^1$

素因数の和:238287

約数の個数: 32

約数和(自身を含む): 32001984000

約数和(自身を除く): 11845819041

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 417, 609, 973, 2919, 4031, 12093, 28217, 84651, 238109, 714327, 1666763, 5000289, 6905161, 20715483, 33097151, 48336127, 99291453, 145008381, 231680057, 695040171, 959817379, 2879452137, 6718721653, 20156164959]

約数ペア:

[(1, 20156164959), (3, 6718721653), (7, 2879452137), (21, 959817379), (29, 695040171), (87, 231680057), (139, 145008381), (203, 99291453), (417, 48336127), (609, 33097151), (973, 20715483), (2919, 6905161), (4031, 5000289), (12093, 1666763), (28217, 714327), (84651, 238109)]