21895638

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 27352362

約数列:

[1, 2, 3, 6, 19, 29, 37, 38, 57, 58, 74, 87, 111, 114, 174, 179, 222, 358, 537, 551, 703, 1073, 1074, 1102, 1406, 1653, 2109, 2146, 3219, 3306, 3401, 4218, 5191, 6438, 6623, 6802, 10203, 10382, 13246, 15573, 19869, 20387, 20406, 31146, 39738, 40774, 61161, 98629, 122322, 125837, 192067, 197258, 251674, 295887, 377511, 384134, 576201, 591774, 755022, 1152402, 3649273, 7298546, 10947819, 21895638]

約数ペア:

[(1, 21895638), (2, 10947819), (3, 7298546), (6, 3649273), (19, 1152402), (29, 755022), (37, 591774), (38, 576201), (57, 384134), (58, 377511), (74, 295887), (87, 251674), (111, 197258), (114, 192067), (174, 125837), (179, 122322), (222, 98629), (358, 61161), (537, 40774), (551, 39738), (703, 31146), (1073, 20406), (1074, 20387), (1102, 19869), (1406, 15573), (1653, 13246), (2109, 10382), (2146, 10203), (3219, 6802), (3306, 6623), (3401, 6438), (4218, 5191)]