19653165

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{2971}}^1$

素因数の和:2999

約数の個数: 48

約数和(自身を含む): 40656960

約数和(自身を除く): 21003795

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 2971, 6615, 8913, 14855, 20797, 26739, 44565, 62391, 80217, 103985, 133695, 145579, 187173, 311955, 401085, 436737, 561519, 727895, 935865, 1310211, 2183685, 2807595, 3930633, 6551055, 19653165]

約数ペア:

[(1, 19653165), (3, 6551055), (5, 3930633), (7, 2807595), (9, 2183685), (15, 1310211), (21, 935865), (27, 727895), (35, 561519), (45, 436737), (49, 401085), (63, 311955), (105, 187173), (135, 145579), (147, 133695), (189, 103985), (245, 80217), (315, 62391), (441, 44565), (735, 26739), (945, 20797), (1323, 14855), (2205, 8913), (2971, 6615)]