20641404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3461}}^1$

素因数の和:3546

約数の個数: 48

約数和(自身を含む): 55835136

約数和(自身を除く): 35193732

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3461, 5964, 6922, 10383, 13844, 20766, 24227, 41532, 48454, 72681, 96908, 145362, 245731, 290724, 491462, 737193, 982924, 1474386, 1720117, 2948772, 3440234, 5160351, 6880468, 10320702, 20641404]

約数ペア:

[(1, 20641404), (2, 10320702), (3, 6880468), (4, 5160351), (6, 3440234), (7, 2948772), (12, 1720117), (14, 1474386), (21, 982924), (28, 737193), (42, 491462), (71, 290724), (84, 245731), (142, 145362), (213, 96908), (284, 72681), (426, 48454), (497, 41532), (852, 24227), (994, 20766), (1491, 13844), (1988, 10383), (2982, 6922), (3461, 5964)]