28217385

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 58046976

約数和(自身を除く): 29829591

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 67, 105, 147, 191, 201, 245, 315, 335, 441, 469, 573, 603, 735, 955, 1005, 1337, 1407, 1719, 2205, 2345, 2865, 3015, 3283, 4011, 4221, 6685, 7035, 8595, 9359, 9849, 12033, 12797, 16415, 20055, 21105, 28077, 29547, 38391, 46795, 49245, 60165, 63985, 84231, 89579, 115173, 140385, 147735, 191955, 268737, 421155, 447895, 575865, 627053, 806211, 1343685, 1881159, 3135265, 4031055, 5643477, 9405795, 28217385]

約数ペア:

[(1, 28217385), (3, 9405795), (5, 5643477), (7, 4031055), (9, 3135265), (15, 1881159), (21, 1343685), (35, 806211), (45, 627053), (49, 575865), (63, 447895), (67, 421155), (105, 268737), (147, 191955), (191, 147735), (201, 140385), (245, 115173), (315, 89579), (335, 84231), (441, 63985), (469, 60165), (573, 49245), (603, 46795), (735, 38391), (955, 29547), (1005, 28077), (1337, 21105), (1407, 20055), (1719, 16415), (2205, 12797), (2345, 12033), (2865, 9849), (3015, 9359), (3283, 8595), (4011, 7035), (4221, 6685)]