21961511

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 27820800

約数和(自身を除く): 5859289

約数列:

[1, 11, 13, 19, 59, 137, 143, 209, 247, 649, 767, 1121, 1507, 1781, 2603, 2717, 8083, 8437, 12331, 14573, 19591, 28633, 33839, 88913, 105079, 153577, 160303, 372229, 1155869, 1689347, 1996501, 21961511]

約数ペア:

[(1, 21961511), (11, 1996501), (13, 1689347), (19, 1155869), (59, 372229), (137, 160303), (143, 153577), (209, 105079), (247, 88913), (649, 33839), (767, 28633), (1121, 19591), (1507, 14573), (1781, 12331), (2603, 8437), (2717, 8083)]