18266955

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 35212320

約数和(自身を除く): 16945365

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 857, 1015, 1421, 2571, 3045, 4263, 4285, 5999, 7105, 12855, 17997, 21315, 24853, 29995, 41993, 74559, 89985, 124265, 125979, 173971, 209965, 372795, 521913, 629895, 869855, 1217797, 2609565, 3653391, 6088985, 18266955]

約数ペア:

[(1, 18266955), (3, 6088985), (5, 3653391), (7, 2609565), (15, 1217797), (21, 869855), (29, 629895), (35, 521913), (49, 372795), (87, 209965), (105, 173971), (145, 125979), (147, 124265), (203, 89985), (245, 74559), (435, 41993), (609, 29995), (735, 24853), (857, 21315), (1015, 17997), (1421, 12855), (2571, 7105), (3045, 5999), (4263, 4285)]