21097885538

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1\times {\mathrm{245627}}^1$

素因数の和:246337

約数の個数: 16

約数和(自身を含む): 32169407904

約数和(自身を除く): 11071522366

約数列:

[1, 2, 67, 134, 641, 1282, 42947, 85894, 245627, 491254, 16457009, 32914018, 157446907, 314893814, 10548942769, 21097885538]

約数ペア:

[(1, 21097885538), (2, 10548942769), (67, 314893814), (134, 157446907), (641, 32914018), (1282, 16457009), (42947, 491254), (85894, 245627)]