21244095

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 38787840

約数和(自身を除く): 17543745

約数列:

[1, 3, 5, 9, 15, 29, 45, 73, 87, 145, 219, 223, 261, 365, 435, 657, 669, 1095, 1115, 1305, 2007, 2117, 3285, 3345, 6351, 6467, 10035, 10585, 16279, 19053, 19401, 31755, 32335, 48837, 58203, 81395, 95265, 97005, 146511, 244185, 291015, 472091, 732555, 1416273, 2360455, 4248819, 7081365, 21244095]

約数ペア:

[(1, 21244095), (3, 7081365), (5, 4248819), (9, 2360455), (15, 1416273), (29, 732555), (45, 472091), (73, 291015), (87, 244185), (145, 146511), (219, 97005), (223, 95265), (261, 81395), (365, 58203), (435, 48837), (657, 32335), (669, 31755), (1095, 19401), (1115, 19053), (1305, 16279), (2007, 10585), (2117, 10035), (3285, 6467), (3345, 6351)]