20656948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9689}}^1$

素因数の和:9747

約数の個数: 24

約数和(自身を含む): 39884040

約数和(自身を除く): 19227092

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9689, 19378, 38756, 125957, 251914, 397249, 503828, 794498, 1588996, 5164237, 10328474, 20656948]

約数ペア:

[(1, 20656948), (2, 10328474), (4, 5164237), (13, 1588996), (26, 794498), (41, 503828), (52, 397249), (82, 251914), (164, 125957), (533, 38756), (1066, 19378), (2132, 9689)]