21425415

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1459}}^1$

素因数の和:1567

約数の個数: 32

約数和(自身を含む): 37843200

約数和(自身を除く): 16417785

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1459, 2937, 4377, 4895, 7295, 14685, 16049, 21885, 48147, 80245, 129851, 240735, 389553, 649255, 1428361, 1947765, 4285083, 7141805, 21425415]

約数ペア:

[(1, 21425415), (3, 7141805), (5, 4285083), (11, 1947765), (15, 1428361), (33, 649255), (55, 389553), (89, 240735), (165, 129851), (267, 80245), (445, 48147), (979, 21885), (1335, 16049), (1459, 14685), (2937, 7295), (4377, 4895)]