18920226

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 41952384

約数和(自身を除く): 23032158

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 141, 169, 282, 338, 397, 507, 611, 794, 1014, 1191, 1222, 1833, 2382, 3666, 5161, 7943, 10322, 15483, 15886, 18659, 23829, 30966, 37318, 47658, 55977, 67093, 111954, 134186, 201279, 242567, 402558, 485134, 727701, 1455402, 3153371, 6306742, 9460113, 18920226]

約数ペア:

[(1, 18920226), (2, 9460113), (3, 6306742), (6, 3153371), (13, 1455402), (26, 727701), (39, 485134), (47, 402558), (78, 242567), (94, 201279), (141, 134186), (169, 111954), (282, 67093), (338, 55977), (397, 47658), (507, 37318), (611, 30966), (794, 23829), (1014, 18659), (1191, 15886), (1222, 15483), (1833, 10322), (2382, 7943), (3666, 5161)]