21602164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 20491916

約数列:

[1, 2, 4, 19, 31, 38, 53, 62, 76, 106, 124, 173, 212, 346, 589, 692, 1007, 1178, 1643, 2014, 2356, 3286, 3287, 4028, 5363, 6572, 6574, 9169, 10726, 13148, 18338, 21452, 31217, 36676, 62434, 101897, 124868, 174211, 203794, 284239, 348422, 407588, 568478, 696844, 1136956, 5400541, 10801082, 21602164]

約数ペア:

[(1, 21602164), (2, 10801082), (4, 5400541), (19, 1136956), (31, 696844), (38, 568478), (53, 407588), (62, 348422), (76, 284239), (106, 203794), (124, 174211), (173, 124868), (212, 101897), (346, 62434), (589, 36676), (692, 31217), (1007, 21452), (1178, 18338), (1643, 13148), (2014, 10726), (2356, 9169), (3286, 6574), (3287, 6572), (4028, 5363)]