20991102

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{571}}^1$

素因数の和:1144

約数の個数: 32

約数和(自身を含む): 45961344

約数和(自身を除く): 24970242

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 557, 571, 1114, 1142, 1671, 1713, 3342, 3426, 6127, 6281, 12254, 12562, 18381, 18843, 36762, 37686, 318047, 636094, 954141, 1908282, 3498517, 6997034, 10495551, 20991102]

約数ペア:

[(1, 20991102), (2, 10495551), (3, 6997034), (6, 3498517), (11, 1908282), (22, 954141), (33, 636094), (66, 318047), (557, 37686), (571, 36762), (1114, 18843), (1142, 18381), (1671, 12562), (1713, 12254), (3342, 6281), (3426, 6127)]