20956809601

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{180907}}^1$

素因数の和:181013

約数の個数: 32

約数和(自身を含む): 27555906560

約数和(自身を除く): 6599096959

約数列:

[1, 7, 13, 19, 67, 91, 133, 247, 469, 871, 1273, 1729, 6097, 8911, 16549, 115843, 180907, 1266349, 2351791, 3437233, 12120769, 16462537, 24060631, 44684029, 84845383, 157569997, 230294611, 312788203, 1102989979, 1612062277, 2993829943, 20956809601]

約数ペア:

[(1, 20956809601), (7, 2993829943), (13, 1612062277), (19, 1102989979), (67, 312788203), (91, 230294611), (133, 157569997), (247, 84845383), (469, 44684029), (871, 24060631), (1273, 16462537), (1729, 12120769), (6097, 3437233), (8911, 2351791), (16549, 1266349), (115843, 180907)]