18131911532

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20889299}}^1$

素因数の和:20889341

約数の個数: 24

約数和(自身を含む): 37433625600

約数和(自身を除く): 19301714068

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 20889299, 41778598, 83557196, 146225093, 292450186, 584900372, 647568269, 1295136538, 2590273076, 4532977883, 9065955766, 18131911532]

約数ペア:

[(1, 18131911532), (2, 9065955766), (4, 4532977883), (7, 2590273076), (14, 1295136538), (28, 647568269), (31, 584900372), (62, 292450186), (124, 146225093), (217, 83557196), (434, 41778598), (868, 20889299)]