201982221

素因数分解:

$3^3\times 7^1\times {\mathrm{809}}^1\times {\mathrm{1321}}^1$

素因数の和:2146

約数の個数: 32

約数和(自身を含む): 342662400

約数和(自身を除く): 140680179

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 809, 1321, 2427, 3963, 5663, 7281, 9247, 11889, 16989, 21843, 27741, 35667, 50967, 83223, 152901, 249669, 1068689, 3206067, 7480823, 9618201, 22442469, 28854603, 67327407, 201982221]

約数ペア:

[(1, 201982221), (3, 67327407), (7, 28854603), (9, 22442469), (21, 9618201), (27, 7480823), (63, 3206067), (189, 1068689), (809, 249669), (1321, 152901), (2427, 83223), (3963, 50967), (5663, 35667), (7281, 27741), (9247, 21843), (11889, 16989)]