20931692

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:1010

約数の個数: 36

約数和(自身を含む): 41002920

約数和(自身を除く): 20071228

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 289, 323, 578, 646, 953, 1156, 1292, 1906, 3812, 5491, 10982, 16201, 18107, 21964, 32402, 36214, 64804, 72428, 275417, 307819, 550834, 615638, 1101668, 1231276, 5232923, 10465846, 20931692]

約数ペア:

[(1, 20931692), (2, 10465846), (4, 5232923), (17, 1231276), (19, 1101668), (34, 615638), (38, 550834), (68, 307819), (76, 275417), (289, 72428), (323, 64804), (578, 36214), (646, 32402), (953, 21964), (1156, 18107), (1292, 16201), (1906, 10982), (3812, 5491)]