251013987

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 423641088

約数和(自身を除く): 172627101

約数列:

[1, 3, 7, 9, 21, 63, 101, 103, 303, 309, 383, 707, 721, 909, 927, 1149, 2121, 2163, 2681, 3447, 6363, 6489, 8043, 10403, 24129, 31209, 38683, 39449, 72821, 93627, 116049, 118347, 218463, 270781, 276143, 348147, 355041, 655389, 812343, 828429, 2437029, 2485287, 3984349, 11953047, 27890443, 35859141, 83671329, 251013987]

約数ペア:

[(1, 251013987), (3, 83671329), (7, 35859141), (9, 27890443), (21, 11953047), (63, 3984349), (101, 2485287), (103, 2437029), (303, 828429), (309, 812343), (383, 655389), (707, 355041), (721, 348147), (909, 276143), (927, 270781), (1149, 218463), (2121, 118347), (2163, 116049), (2681, 93627), (3447, 72821), (6363, 39449), (6489, 38683), (8043, 31209), (10403, 24129)]