18819766

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 15452234

約数列:

[1, 2, 7, 14, 19, 38, 133, 139, 266, 278, 509, 973, 1018, 1946, 2641, 3563, 5282, 7126, 9671, 18487, 19342, 36974, 67697, 70751, 135394, 141502, 495257, 990514, 1344269, 2688538, 9409883, 18819766]

約数ペア:

[(1, 18819766), (2, 9409883), (7, 2688538), (14, 1344269), (19, 990514), (38, 495257), (133, 141502), (139, 135394), (266, 70751), (278, 67697), (509, 36974), (973, 19342), (1018, 18487), (1946, 9671), (2641, 7126), (3563, 5282)]