18987465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2699}}^1$

素因数の和:2781

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 16263735

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 2699, 7035, 8097, 13495, 18893, 40485, 56679, 94465, 180833, 283395, 542499, 904165, 1265831, 2712495, 3797493, 6329155, 18987465]

約数ペア:

[(1, 18987465), (3, 6329155), (5, 3797493), (7, 2712495), (15, 1265831), (21, 904165), (35, 542499), (67, 283395), (105, 180833), (201, 94465), (335, 56679), (469, 40485), (1005, 18893), (1407, 13495), (2345, 8097), (2699, 7035)]