208538253

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2711}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 395735040

約数和(自身を除く): 187196787

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 37, 63, 77, 99, 111, 189, 231, 259, 297, 333, 407, 693, 777, 999, 1221, 2079, 2331, 2711, 2849, 3663, 6993, 8133, 8547, 10989, 18977, 24399, 25641, 29821, 56931, 73197, 76923, 89463, 100307, 170793, 208747, 268389, 300921, 512379, 626241, 702149, 805167, 902763, 1103377, 1878723, 2106447, 2708289, 3310131, 5636169, 6319341, 7723639, 9930393, 18958023, 23170917, 29791179, 69512751, 208538253]

約数ペア:

[(1, 208538253), (3, 69512751), (7, 29791179), (9, 23170917), (11, 18958023), (21, 9930393), (27, 7723639), (33, 6319341), (37, 5636169), (63, 3310131), (77, 2708289), (99, 2106447), (111, 1878723), (189, 1103377), (231, 902763), (259, 805167), (297, 702149), (333, 626241), (407, 512379), (693, 300921), (777, 268389), (999, 208747), (1221, 170793), (2079, 100307), (2331, 89463), (2711, 76923), (2849, 73197), (3663, 56931), (6993, 29821), (8133, 25641), (8547, 24399), (10989, 18977)]