20449404

素因数分解:

$2^2\times 3^2\times {\mathrm{347}}^1\times {\mathrm{1637}}^1$

素因数の和:1994

約数の個数: 36

約数和(自身を含む): 51872184

約数和(自身を除く): 31422780

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 347, 694, 1041, 1388, 1637, 2082, 3123, 3274, 4164, 4911, 6246, 6548, 9822, 12492, 14733, 19644, 29466, 58932, 568039, 1136078, 1704117, 2272156, 3408234, 5112351, 6816468, 10224702, 20449404]

約数ペア:

[(1, 20449404), (2, 10224702), (3, 6816468), (4, 5112351), (6, 3408234), (9, 2272156), (12, 1704117), (18, 1136078), (36, 568039), (347, 58932), (694, 29466), (1041, 19644), (1388, 14733), (1637, 12492), (2082, 9822), (3123, 6548), (3274, 6246), (4164, 4911)]