21521203198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13777979}}^1$

素因数の和:13778063

約数の個数: 16

約数和(自身を含む): 35712524160

約数和(自身を除く): 14191320962

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13777979, 27555958, 151557769, 303115538, 978236509, 1956473018, 10760601599, 21521203198]

約数ペア:

[(1, 21521203198), (2, 10760601599), (11, 1956473018), (22, 978236509), (71, 303115538), (142, 151557769), (781, 27555958), (1562, 13777979)]