21821430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 54468288

約数和(自身を除く): 32646858

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 113, 123, 157, 205, 226, 246, 314, 339, 410, 471, 565, 615, 678, 785, 942, 1130, 1230, 1570, 1695, 2355, 3390, 4633, 4710, 6437, 9266, 12874, 13899, 17741, 19311, 23165, 27798, 32185, 35482, 38622, 46330, 53223, 64370, 69495, 88705, 96555, 106446, 138990, 177410, 193110, 266115, 532230, 727381, 1454762, 2182143, 3636905, 4364286, 7273810, 10910715, 21821430]

約数ペア:

[(1, 21821430), (2, 10910715), (3, 7273810), (5, 4364286), (6, 3636905), (10, 2182143), (15, 1454762), (30, 727381), (41, 532230), (82, 266115), (113, 193110), (123, 177410), (157, 138990), (205, 106446), (226, 96555), (246, 88705), (314, 69495), (339, 64370), (410, 53223), (471, 46330), (565, 38622), (615, 35482), (678, 32185), (785, 27798), (942, 23165), (1130, 19311), (1230, 17741), (1570, 13899), (1695, 12874), (2355, 9266), (3390, 6437), (4633, 4710)]