18287115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 37158912

約数和(自身を除く): 18871797

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 71, 77, 105, 165, 213, 223, 231, 355, 385, 497, 669, 781, 1065, 1115, 1155, 1491, 1561, 2343, 2453, 2485, 3345, 3905, 4683, 5467, 7359, 7455, 7805, 11715, 12265, 15833, 16401, 17171, 23415, 27335, 36795, 47499, 51513, 79165, 82005, 85855, 110831, 174163, 237495, 257565, 332493, 522489, 554155, 870815, 1219141, 1662465, 2612445, 3657423, 6095705, 18287115]

約数ペア:

[(1, 18287115), (3, 6095705), (5, 3657423), (7, 2612445), (11, 1662465), (15, 1219141), (21, 870815), (33, 554155), (35, 522489), (55, 332493), (71, 257565), (77, 237495), (105, 174163), (165, 110831), (213, 85855), (223, 82005), (231, 79165), (355, 51513), (385, 47499), (497, 36795), (669, 27335), (781, 23415), (1065, 17171), (1115, 16401), (1155, 15833), (1491, 12265), (1561, 11715), (2343, 7805), (2453, 7455), (2485, 7359), (3345, 5467), (3905, 4683)]