81921308

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127207}}^1$

素因数の和:127241

約数の個数: 24

約数和(自身を含む): 170967552

約数和(自身を除く): 89046244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 127207, 254414, 508828, 890449, 1780898, 2925761, 3561796, 5851522, 11703044, 20480327, 40960654, 81921308]

約数ペア:

[(1, 81921308), (2, 40960654), (4, 20480327), (7, 11703044), (14, 5851522), (23, 3561796), (28, 2925761), (46, 1780898), (92, 890449), (161, 508828), (322, 254414), (644, 127207)]