20739558

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:997

約数の個数: 64

約数和(自身を含む): 51867648

約数和(自身を除く): 31128090

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 31, 34, 42, 51, 62, 93, 102, 119, 186, 217, 238, 357, 434, 527, 651, 714, 937, 1054, 1302, 1581, 1874, 2811, 3162, 3689, 5622, 6559, 7378, 11067, 13118, 15929, 19677, 22134, 29047, 31858, 39354, 47787, 58094, 87141, 95574, 111503, 174282, 203329, 223006, 334509, 406658, 493799, 609987, 669018, 987598, 1219974, 1481397, 2962794, 3456593, 6913186, 10369779, 20739558]

約数ペア:

[(1, 20739558), (2, 10369779), (3, 6913186), (6, 3456593), (7, 2962794), (14, 1481397), (17, 1219974), (21, 987598), (31, 669018), (34, 609987), (42, 493799), (51, 406658), (62, 334509), (93, 223006), (102, 203329), (119, 174282), (186, 111503), (217, 95574), (238, 87141), (357, 58094), (434, 47787), (527, 39354), (651, 31858), (714, 29047), (937, 22134), (1054, 19677), (1302, 15929), (1581, 13118), (1874, 11067), (2811, 7378), (3162, 6559), (3689, 5622)]