20785670964

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4407479}}^1$

素因数の和:4407620

約数の個数: 36

約数和(自身を含む): 52942649760

約数和(自身を除く): 32156978796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4716, 4407479, 8814958, 13222437, 17629916, 26444874, 39667311, 52889748, 79334622, 158669244, 577379749, 1154759498, 1732139247, 2309518996, 3464278494, 5196417741, 6928556988, 10392835482, 20785670964]

約数ペア:

[(1, 20785670964), (2, 10392835482), (3, 6928556988), (4, 5196417741), (6, 3464278494), (9, 2309518996), (12, 1732139247), (18, 1154759498), (36, 577379749), (131, 158669244), (262, 79334622), (393, 52889748), (524, 39667311), (786, 26444874), (1179, 17629916), (1572, 13222437), (2358, 8814958), (4716, 4407479)]