19860944

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 40

約数和(自身を含む): 39664128

約数和(自身を除く): 19803184

約数列:

[1, 2, 4, 8, 16, 67, 97, 134, 191, 194, 268, 382, 388, 536, 764, 776, 1072, 1528, 1552, 3056, 6499, 12797, 12998, 18527, 25594, 25996, 37054, 51188, 51992, 74108, 102376, 103984, 148216, 204752, 296432, 1241309, 2482618, 4965236, 9930472, 19860944]

約数ペア:

[(1, 19860944), (2, 9930472), (4, 4965236), (8, 2482618), (16, 1241309), (67, 296432), (97, 204752), (134, 148216), (191, 103984), (194, 102376), (268, 74108), (382, 51992), (388, 51188), (536, 37054), (764, 25996), (776, 25594), (1072, 18527), (1528, 12998), (1552, 12797), (3056, 6499)]