686289321

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{409}}^1\times {\mathrm{2143}}^1$

素因数の和:2590

約数の個数: 32

約数和(自身を含む): 1054848000

約数和(自身を除く): 368558679

約数列:

[1, 3, 9, 27, 29, 87, 261, 409, 783, 1227, 2143, 3681, 6429, 11043, 11861, 19287, 35583, 57861, 62147, 106749, 186441, 320247, 559323, 876487, 1677969, 2629461, 7888383, 23665149, 25418123, 76254369, 228763107, 686289321]

約数ペア:

[(1, 686289321), (3, 228763107), (9, 76254369), (27, 25418123), (29, 23665149), (87, 7888383), (261, 2629461), (409, 1677969), (783, 876487), (1227, 559323), (2143, 320247), (3681, 186441), (6429, 106749), (11043, 62147), (11861, 57861), (19287, 35583)]