13209561

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 21405384

約数和(自身を除く): 8195823

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 181, 459, 477, 543, 901, 1377, 1431, 1629, 2703, 3077, 4293, 4887, 8109, 9231, 9593, 14661, 24327, 27693, 28779, 72981, 83079, 86337, 163081, 249237, 259011, 489243, 777033, 1467729, 4403187, 13209561]

約数ペア:

[(1, 13209561), (3, 4403187), (9, 1467729), (17, 777033), (27, 489243), (51, 259011), (53, 249237), (81, 163081), (153, 86337), (159, 83079), (181, 72981), (459, 28779), (477, 27693), (543, 24327), (901, 14661), (1377, 9593), (1431, 9231), (1629, 8109), (2703, 4887), (3077, 4293)]