20167905

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 33903360

約数和(自身を除く): 13735455

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 653, 1065, 1959, 2059, 3265, 6177, 9795, 10295, 18937, 30885, 46363, 56811, 94685, 139089, 231815, 284055, 695445, 1344527, 4033581, 6722635, 20167905]

約数ペア:

[(1, 20167905), (3, 6722635), (5, 4033581), (15, 1344527), (29, 695445), (71, 284055), (87, 231815), (145, 139089), (213, 94685), (355, 56811), (435, 46363), (653, 30885), (1065, 18937), (1959, 10295), (2059, 9795), (3265, 6177)]