207969687

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7949}}^1$

素因数の和:7997

約数の個数: 40

約数和(自身を含む): 346302000

約数和(自身を除く): 138332313

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1377, 1539, 2907, 7949, 8721, 23847, 26163, 71541, 135133, 151031, 214623, 405399, 453093, 643869, 1216197, 1359279, 2567527, 3648591, 4077837, 7702581, 10945773, 12233511, 23107743, 69323229, 207969687]

約数ペア:

[(1, 207969687), (3, 69323229), (9, 23107743), (17, 12233511), (19, 10945773), (27, 7702581), (51, 4077837), (57, 3648591), (81, 2567527), (153, 1359279), (171, 1216197), (323, 643869), (459, 453093), (513, 405399), (969, 214623), (1377, 151031), (1539, 135133), (2907, 71541), (7949, 26163), (8721, 23847)]