20705427862

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{157219}}^1$

素因数の和:157660

約数の個数: 32

約数和(自身を含む): 37129075200

約数和(自身を除く): 16423647338

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 409, 818, 2863, 5726, 9407, 18814, 65849, 131698, 157219, 314438, 1100533, 2201066, 3616037, 7232074, 25312259, 50624518, 64302571, 128605142, 450117997, 900235994, 1478959133, 2957918266, 10352713931, 20705427862]

約数ペア:

[(1, 20705427862), (2, 10352713931), (7, 2957918266), (14, 1478959133), (23, 900235994), (46, 450117997), (161, 128605142), (322, 64302571), (409, 50624518), (818, 25312259), (2863, 7232074), (5726, 3616037), (9407, 2201066), (18814, 1100533), (65849, 314438), (131698, 157219)]