991172

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 2178540

約数和(自身を除く): 1187368

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 389, 637, 778, 1274, 1556, 2548, 2723, 5057, 5446, 10114, 10892, 19061, 20228, 35399, 38122, 70798, 76244, 141596, 247793, 495586, 991172]

約数ペア:

[(1, 991172), (2, 495586), (4, 247793), (7, 141596), (13, 76244), (14, 70798), (26, 38122), (28, 35399), (49, 20228), (52, 19061), (91, 10892), (98, 10114), (182, 5446), (196, 5057), (364, 2723), (389, 2548), (637, 1556), (778, 1274)]