13921245

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 26535600

約数和(自身を除く): 12614355

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 449, 477, 585, 689, 795, 1347, 2067, 2245, 2385, 3445, 4041, 5837, 6201, 6735, 10335, 17511, 20205, 23797, 29185, 31005, 52533, 71391, 87555, 118985, 214173, 262665, 309361, 356955, 928083, 1070865, 1546805, 2784249, 4640415, 13921245]

約数ペア:

[(1, 13921245), (3, 4640415), (5, 2784249), (9, 1546805), (13, 1070865), (15, 928083), (39, 356955), (45, 309361), (53, 262665), (65, 214173), (117, 118985), (159, 87555), (195, 71391), (265, 52533), (449, 31005), (477, 29185), (585, 23797), (689, 20205), (795, 17511), (1347, 10335), (2067, 6735), (2245, 6201), (2385, 5837), (3445, 4041)]