21738645

素因数分解:

$3^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{569}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 38851200

約数和(自身を除く): 17112555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 283, 569, 849, 1415, 1707, 2547, 2845, 4245, 5121, 7641, 8535, 12735, 15363, 25605, 38205, 76815, 161027, 483081, 805135, 1449243, 2415405, 4347729, 7246215, 21738645]

約数ペア:

[(1, 21738645), (3, 7246215), (5, 4347729), (9, 2415405), (15, 1449243), (27, 805135), (45, 483081), (135, 161027), (283, 76815), (569, 38205), (849, 25605), (1415, 15363), (1707, 12735), (2547, 8535), (2845, 7641), (4245, 5121)]