666918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 1697280

約数和(自身を除く): 1030362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 67, 79, 126, 134, 158, 201, 237, 402, 469, 474, 553, 603, 711, 938, 1106, 1206, 1407, 1422, 1659, 2814, 3318, 4221, 4977, 5293, 8442, 9954, 10586, 15879, 31758, 37051, 47637, 74102, 95274, 111153, 222306, 333459, 666918]

約数ペア:

[(1, 666918), (2, 333459), (3, 222306), (6, 111153), (7, 95274), (9, 74102), (14, 47637), (18, 37051), (21, 31758), (42, 15879), (63, 10586), (67, 9954), (79, 8442), (126, 5293), (134, 4977), (158, 4221), (201, 3318), (237, 2814), (402, 1659), (469, 1422), (474, 1407), (553, 1206), (603, 1106), (711, 938)]