21026964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1297}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 56405888

約数和(自身を除く): 35378924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 193, 386, 579, 772, 1158, 1297, 1351, 2316, 2594, 2702, 3891, 4053, 5188, 5404, 7782, 8106, 9079, 15564, 16212, 18158, 27237, 36316, 54474, 108948, 250321, 500642, 750963, 1001284, 1501926, 1752247, 3003852, 3504494, 5256741, 7008988, 10513482, 21026964]

約数ペア:

[(1, 21026964), (2, 10513482), (3, 7008988), (4, 5256741), (6, 3504494), (7, 3003852), (12, 1752247), (14, 1501926), (21, 1001284), (28, 750963), (42, 500642), (84, 250321), (193, 108948), (386, 54474), (579, 36316), (772, 27237), (1158, 18158), (1297, 16212), (1351, 15564), (2316, 9079), (2594, 8106), (2702, 7782), (3891, 5404), (4053, 5188)]