211316835

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{2357}}^1$

素因数の和:2547

約数の個数: 32

約数和(自身を含む): 348606720

約数和(自身を除く): 137289885

約数列:

[1, 3, 5, 15, 43, 129, 139, 215, 417, 645, 695, 2085, 2357, 5977, 7071, 11785, 17931, 29885, 35355, 89655, 101351, 304053, 327623, 506755, 982869, 1520265, 1638115, 4914345, 14087789, 42263367, 70438945, 211316835]

約数ペア:

[(1, 211316835), (3, 70438945), (5, 42263367), (15, 14087789), (43, 4914345), (129, 1638115), (139, 1520265), (215, 982869), (417, 506755), (645, 327623), (695, 304053), (2085, 101351), (2357, 89655), (5977, 35355), (7071, 29885), (11785, 17931)]