21232380416

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3189961}}^1$

素因数の和:3189992

約数の個数: 40

約数和(自身を含む): 45686635764

約数和(自身を除く): 24454255348

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3328, 6656, 3189961, 6379922, 12759844, 25519688, 41469493, 51039376, 82938986, 102078752, 165877972, 204157504, 331755944, 408315008, 663511888, 816630016, 1327023776, 1633260032, 2654047552, 5308095104, 10616190208, 21232380416]

約数ペア:

[(1, 21232380416), (2, 10616190208), (4, 5308095104), (8, 2654047552), (13, 1633260032), (16, 1327023776), (26, 816630016), (32, 663511888), (52, 408315008), (64, 331755944), (104, 204157504), (128, 165877972), (208, 102078752), (256, 82938986), (416, 51039376), (512, 41469493), (832, 25519688), (1664, 12759844), (3328, 6379922), (6656, 3189961)]