81627897

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 133249536

約数和(自身を除く): 51621639

約数列:

[1, 3, 13, 17, 23, 39, 51, 53, 69, 101, 159, 221, 299, 303, 391, 663, 689, 897, 901, 1173, 1219, 1313, 1717, 2067, 2323, 2703, 3657, 3939, 5083, 5151, 5353, 6969, 11713, 15249, 15847, 16059, 20723, 22321, 30199, 35139, 39491, 47541, 62169, 66963, 69589, 90597, 91001, 118473, 123119, 208767, 269399, 273003, 369357, 513383, 808197, 1183013, 1540149, 1600547, 2093023, 3549039, 4801641, 6279069, 27209299, 81627897]

約数ペア:

[(1, 81627897), (3, 27209299), (13, 6279069), (17, 4801641), (23, 3549039), (39, 2093023), (51, 1600547), (53, 1540149), (69, 1183013), (101, 808197), (159, 513383), (221, 369357), (299, 273003), (303, 269399), (391, 208767), (663, 123119), (689, 118473), (897, 91001), (901, 90597), (1173, 69589), (1219, 66963), (1313, 62169), (1717, 47541), (2067, 39491), (2323, 35139), (2703, 30199), (3657, 22321), (3939, 20723), (5083, 16059), (5151, 15847), (5353, 15249), (6969, 11713)]