20734644

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 56881440

約数和(自身を除く): 36146796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 179, 196, 197, 294, 358, 394, 537, 588, 591, 716, 788, 1074, 1182, 1253, 1379, 2148, 2364, 2506, 2758, 3759, 4137, 5012, 5516, 7518, 8274, 8771, 9653, 15036, 16548, 17542, 19306, 26313, 28959, 35084, 35263, 38612, 52626, 57918, 70526, 105252, 105789, 115836, 141052, 211578, 246841, 423156, 493682, 740523, 987364, 1481046, 1727887, 2962092, 3455774, 5183661, 6911548, 10367322, 20734644]

約数ペア:

[(1, 20734644), (2, 10367322), (3, 6911548), (4, 5183661), (6, 3455774), (7, 2962092), (12, 1727887), (14, 1481046), (21, 987364), (28, 740523), (42, 493682), (49, 423156), (84, 246841), (98, 211578), (147, 141052), (179, 115836), (196, 105789), (197, 105252), (294, 70526), (358, 57918), (394, 52626), (537, 38612), (588, 35263), (591, 35084), (716, 28959), (788, 26313), (1074, 19306), (1182, 17542), (1253, 16548), (1379, 15036), (2148, 9653), (2364, 8771), (2506, 8274), (2758, 7518), (3759, 5516), (4137, 5012)]