18689685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 17805675

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 71, 105, 109, 115, 161, 213, 327, 345, 355, 483, 497, 545, 763, 805, 1065, 1491, 1633, 1635, 2289, 2415, 2485, 2507, 3815, 4899, 7455, 7521, 7739, 8165, 11431, 11445, 12535, 17549, 23217, 24495, 34293, 37605, 38695, 52647, 54173, 57155, 87745, 116085, 162519, 171465, 177997, 263235, 270865, 533991, 812595, 889985, 1245979, 2669955, 3737937, 6229895, 18689685]

約数ペア:

[(1, 18689685), (3, 6229895), (5, 3737937), (7, 2669955), (15, 1245979), (21, 889985), (23, 812595), (35, 533991), (69, 270865), (71, 263235), (105, 177997), (109, 171465), (115, 162519), (161, 116085), (213, 87745), (327, 57155), (345, 54173), (355, 52647), (483, 38695), (497, 37605), (545, 34293), (763, 24495), (805, 23217), (1065, 17549), (1491, 12535), (1633, 11445), (1635, 11431), (2289, 8165), (2415, 7739), (2485, 7521), (2507, 7455), (3815, 4899)]