20764835

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{971}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10587997

約数列:

[1, 5, 7, 13, 35, 47, 65, 91, 235, 329, 455, 611, 971, 1645, 3055, 4277, 4855, 6797, 12623, 21385, 33985, 45637, 63115, 88361, 228185, 319459, 441805, 593281, 1597295, 2966405, 4152967, 20764835]

約数ペア:

[(1, 20764835), (5, 4152967), (7, 2966405), (13, 1597295), (35, 593281), (47, 441805), (65, 319459), (91, 228185), (235, 88361), (329, 63115), (455, 45637), (611, 33985), (971, 21385), (1645, 12623), (3055, 6797), (4277, 4855)]