253916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 505680

約数和(自身を除く): 251764

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 257, 494, 514, 988, 1028, 3341, 4883, 6682, 9766, 13364, 19532, 63479, 126958, 253916]

約数ペア:

[(1, 253916), (2, 126958), (4, 63479), (13, 19532), (19, 13364), (26, 9766), (38, 6682), (52, 4883), (76, 3341), (247, 1028), (257, 988), (494, 514)]