21000663453

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2617}}^1\times {\mathrm{34739}}^1$

素因数の和:37377

約数の個数: 32

約数和(自身を含む): 34924538880

約数和(自身を除く): 13923875427

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 2617, 7851, 18319, 28787, 34739, 54957, 86361, 104217, 201509, 243173, 382129, 604527, 729519, 1146387, 2674903, 8024709, 90911963, 272735889, 636383741, 1000031593, 1909151223, 3000094779, 7000221151, 21000663453]

約数ペア:

[(1, 21000663453), (3, 7000221151), (7, 3000094779), (11, 1909151223), (21, 1000031593), (33, 636383741), (77, 272735889), (231, 90911963), (2617, 8024709), (7851, 2674903), (18319, 1146387), (28787, 729519), (34739, 604527), (54957, 382129), (86361, 243173), (104217, 201509)]