21497748475

素因数分解:

$5^2\times 7^1\times {\mathrm{9721}}^1\times {\mathrm{12637}}^1$

素因数の和:22375

約数の個数: 24

約数和(自身を含む): 30470925728

約数和(自身を除く): 8973177253

約数列:

[1, 5, 7, 25, 35, 175, 9721, 12637, 48605, 63185, 68047, 88459, 243025, 315925, 340235, 442295, 1701175, 2211475, 122844277, 614221385, 859909939, 3071106925, 4299549695, 21497748475]

約数ペア:

[(1, 21497748475), (5, 4299549695), (7, 3071106925), (25, 859909939), (35, 614221385), (175, 122844277), (9721, 2211475), (12637, 1701175), (48605, 442295), (63185, 340235), (68047, 315925), (88459, 243025)]