19111425

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 33247872

約数和(自身を除く): 14136447

約数列:

[1, 3, 5, 15, 25, 37, 71, 75, 97, 111, 185, 213, 291, 355, 485, 555, 925, 1065, 1455, 1775, 2425, 2627, 2775, 3589, 5325, 6887, 7275, 7881, 10767, 13135, 17945, 20661, 34435, 39405, 53835, 65675, 89725, 103305, 172175, 197025, 254819, 269175, 516525, 764457, 1274095, 3822285, 6370475, 19111425]

約数ペア:

[(1, 19111425), (3, 6370475), (5, 3822285), (15, 1274095), (25, 764457), (37, 516525), (71, 269175), (75, 254819), (97, 197025), (111, 172175), (185, 103305), (213, 89725), (291, 65675), (355, 53835), (485, 39405), (555, 34435), (925, 20661), (1065, 17945), (1455, 13135), (1775, 10767), (2425, 7881), (2627, 7275), (2775, 6887), (3589, 5325)]