20805216476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1\times {\mathrm{19937}}^1$

素因数の和:20630

約数の個数: 48

約数和(自身を含む): 40858225632

約数和(自身を除く): 20053009156

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 641, 814, 1282, 1628, 2564, 7051, 14102, 19937, 23717, 28204, 39874, 47434, 79748, 94868, 219307, 260887, 438614, 521774, 737669, 877228, 1043548, 1475338, 2950676, 8114359, 12779617, 16228718, 25559234, 32457436, 51118468, 140575787, 281151574, 472845829, 562303148, 945691658, 1891383316, 5201304119, 10402608238, 20805216476]

約数ペア:

[(1, 20805216476), (2, 10402608238), (4, 5201304119), (11, 1891383316), (22, 945691658), (37, 562303148), (44, 472845829), (74, 281151574), (148, 140575787), (407, 51118468), (641, 32457436), (814, 25559234), (1282, 16228718), (1628, 12779617), (2564, 8114359), (7051, 2950676), (14102, 1475338), (19937, 1043548), (23717, 877228), (28204, 737669), (39874, 521774), (47434, 438614), (79748, 260887), (94868, 219307)]