21695150

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 43590960

約数和(自身を除く): 21895810

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 190, 205, 410, 475, 557, 779, 950, 1025, 1114, 1558, 2050, 2785, 3895, 5570, 7790, 10583, 13925, 19475, 21166, 22837, 27850, 38950, 45674, 52915, 105830, 114185, 228370, 264575, 433903, 529150, 570925, 867806, 1141850, 2169515, 4339030, 10847575, 21695150]

約数ペア:

[(1, 21695150), (2, 10847575), (5, 4339030), (10, 2169515), (19, 1141850), (25, 867806), (38, 570925), (41, 529150), (50, 433903), (82, 264575), (95, 228370), (190, 114185), (205, 105830), (410, 52915), (475, 45674), (557, 38950), (779, 27850), (950, 22837), (1025, 21166), (1114, 19475), (1558, 13925), (2050, 10583), (2785, 7790), (3895, 5570)]