28216995

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{547}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 47873280

約数和(自身を除く): 19656285

約数列:

[1, 3, 5, 15, 19, 57, 95, 181, 285, 543, 547, 905, 1641, 2715, 2735, 3439, 8205, 10317, 10393, 17195, 31179, 51585, 51965, 99007, 155895, 297021, 495035, 1485105, 1881133, 5643399, 9405665, 28216995]

約数ペア:

[(1, 28216995), (3, 9405665), (5, 5643399), (15, 1881133), (19, 1485105), (57, 495035), (95, 297021), (181, 155895), (285, 99007), (543, 51965), (547, 51585), (905, 31179), (1641, 17195), (2715, 10393), (2735, 10317), (3439, 8205)]