399649089

素因数分解:

$3^1\times 7^1\times {\mathrm{1489}}^1\times {\mathrm{12781}}^1$

素因数の和:14280

約数の個数: 16

約数和(自身を含む): 609445760

約数和(自身を除く): 209796671

約数列:

[1, 3, 7, 21, 1489, 4467, 10423, 12781, 31269, 38343, 89467, 268401, 19030909, 57092727, 133216363, 399649089]

約数ペア:

[(1, 399649089), (3, 133216363), (7, 57092727), (21, 19030909), (1489, 268401), (4467, 89467), (10423, 38343), (12781, 31269)]