21445025

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 32378880

約数和(自身を除く): 10933855

約数列:

[1, 5, 7, 25, 31, 35, 59, 67, 155, 175, 217, 295, 335, 413, 469, 775, 1085, 1475, 1675, 1829, 2065, 2077, 2345, 3953, 5425, 9145, 10325, 10385, 11725, 12803, 14539, 19765, 27671, 45725, 51925, 64015, 72695, 98825, 122543, 138355, 320075, 363475, 612715, 691775, 857801, 3063575, 4289005, 21445025]

約数ペア:

[(1, 21445025), (5, 4289005), (7, 3063575), (25, 857801), (31, 691775), (35, 612715), (59, 363475), (67, 320075), (155, 138355), (175, 122543), (217, 98825), (295, 72695), (335, 64015), (413, 51925), (469, 45725), (775, 27671), (1085, 19765), (1475, 14539), (1675, 12803), (1829, 11725), (2065, 10385), (2077, 10325), (2345, 9145), (3953, 5425)]