21303918

素因数分解:

$2^1\times 3^3\times {\mathrm{241}}^1\times {\mathrm{1637}}^1$

素因数の和:1889

約数の個数: 32

約数和(自身を含む): 47567520

約数和(自身を除く): 26263602

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 241, 482, 723, 1446, 1637, 2169, 3274, 4338, 4911, 6507, 9822, 13014, 14733, 29466, 44199, 88398, 394517, 789034, 1183551, 2367102, 3550653, 7101306, 10651959, 21303918]

約数ペア:

[(1, 21303918), (2, 10651959), (3, 7101306), (6, 3550653), (9, 2367102), (18, 1183551), (27, 789034), (54, 394517), (241, 88398), (482, 44199), (723, 29466), (1446, 14733), (1637, 13014), (2169, 9822), (3274, 6507), (4338, 4911)]