19912304816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{191141}}^1$

素因数の和:191549

約数の個数: 40

約数和(自身を含む): 40956378624

約数和(自身を除く): 21044073808

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 383, 766, 1532, 3064, 6128, 6511, 13022, 26044, 52088, 104176, 191141, 382282, 764564, 1529128, 3058256, 3249397, 6498794, 12997588, 25995176, 51990352, 73207003, 146414006, 292828012, 585656024, 1171312048, 1244519051, 2489038102, 4978076204, 9956152408, 19912304816]

約数ペア:

[(1, 19912304816), (2, 9956152408), (4, 4978076204), (8, 2489038102), (16, 1244519051), (17, 1171312048), (34, 585656024), (68, 292828012), (136, 146414006), (272, 73207003), (383, 51990352), (766, 25995176), (1532, 12997588), (3064, 6498794), (6128, 3249397), (6511, 3058256), (13022, 1529128), (26044, 764564), (52088, 382282), (104176, 191141)]