21575225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 32664576

約数和(自身を除く): 11089351

約数列:

[1, 5, 7, 25, 31, 35, 41, 97, 155, 175, 205, 217, 287, 485, 679, 775, 1025, 1085, 1271, 1435, 2425, 3007, 3395, 3977, 5425, 6355, 7175, 8897, 15035, 16975, 19885, 21049, 27839, 31775, 44485, 75175, 99425, 105245, 123287, 139195, 222425, 526225, 616435, 695975, 863009, 3082175, 4315045, 21575225]

約数ペア:

[(1, 21575225), (5, 4315045), (7, 3082175), (25, 863009), (31, 695975), (35, 616435), (41, 526225), (97, 222425), (155, 139195), (175, 123287), (205, 105245), (217, 99425), (287, 75175), (485, 44485), (679, 31775), (775, 27839), (1025, 21049), (1085, 19885), (1271, 16975), (1435, 15035), (2425, 8897), (3007, 7175), (3395, 6355), (3977, 5425)]