21000201282

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{5527}}^1\times {\mathrm{4909}}^1$

素因数の和:10487

約数の個数: 48

約数和(自身を含む): 46576495680

約数和(自身を除く): 25576294398

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 4909, 5527, 9818, 11054, 14727, 16581, 29454, 33162, 44181, 49743, 88362, 99486, 211087, 237661, 422174, 475322, 633261, 712983, 1266522, 1425966, 1899783, 2138949, 3799566, 4277898, 27132043, 54264086, 81396129, 162792258, 244188387, 488376774, 1166677849, 2333355698, 3500033547, 7000067094, 10500100641, 21000201282]

約数ペア:

[(1, 21000201282), (2, 10500100641), (3, 7000067094), (6, 3500033547), (9, 2333355698), (18, 1166677849), (43, 488376774), (86, 244188387), (129, 162792258), (258, 81396129), (387, 54264086), (774, 27132043), (4909, 4277898), (5527, 3799566), (9818, 2138949), (11054, 1899783), (14727, 1425966), (16581, 1266522), (29454, 712983), (33162, 633261), (44181, 475322), (49743, 422174), (88362, 237661), (99486, 211087)]