18710475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 35735808

約数和(自身を除く): 17025333

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 157, 175, 227, 471, 525, 681, 785, 1099, 1135, 1589, 2355, 3297, 3405, 3925, 4767, 5495, 5675, 7945, 11775, 16485, 17025, 23835, 27475, 35639, 39725, 82425, 106917, 119175, 178195, 249473, 534585, 748419, 890975, 1247365, 2672925, 3742095, 6236825, 18710475]

約数ペア:

[(1, 18710475), (3, 6236825), (5, 3742095), (7, 2672925), (15, 1247365), (21, 890975), (25, 748419), (35, 534585), (75, 249473), (105, 178195), (157, 119175), (175, 106917), (227, 82425), (471, 39725), (525, 35639), (681, 27475), (785, 23835), (1099, 17025), (1135, 16485), (1589, 11775), (2355, 7945), (3297, 5675), (3405, 5495), (3925, 4767)]