28487529

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 50663808

約数和(自身を除く): 22176279

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 67, 119, 153, 201, 357, 397, 469, 603, 1071, 1139, 1191, 1407, 2779, 3417, 3573, 4221, 6749, 7973, 8337, 10251, 20247, 23919, 25011, 26599, 47243, 60741, 71757, 79797, 141729, 186193, 239391, 425187, 452183, 558579, 1356549, 1675737, 3165281, 4069647, 9495843, 28487529]

約数ペア:

[(1, 28487529), (3, 9495843), (7, 4069647), (9, 3165281), (17, 1675737), (21, 1356549), (51, 558579), (63, 452183), (67, 425187), (119, 239391), (153, 186193), (201, 141729), (357, 79797), (397, 71757), (469, 60741), (603, 47243), (1071, 26599), (1139, 25011), (1191, 23919), (1407, 20247), (2779, 10251), (3417, 8337), (3573, 7973), (4221, 6749)]