20129681271

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{951893}}^1$

素因数の和:951975

約数の個数: 32

約数和(自身を含む): 32897456640

約数和(自身を除く): 12767775369

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 3021, 7049, 21147, 951893, 2855679, 6663251, 18085967, 19989753, 50450329, 54257901, 126601769, 151350987, 353152303, 379805307, 958556251, 1059456909, 2875668753, 6709893757, 20129681271]

約数ペア:

[(1, 20129681271), (3, 6709893757), (7, 2875668753), (19, 1059456909), (21, 958556251), (53, 379805307), (57, 353152303), (133, 151350987), (159, 126601769), (371, 54257901), (399, 50450329), (1007, 19989753), (1113, 18085967), (3021, 6663251), (7049, 2855679), (21147, 951893)]