21317892

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 51093504

約数和(自身を除く): 29775612

約数列:

[1, 2, 3, 4, 6, 12, 71, 131, 142, 191, 213, 262, 284, 382, 393, 426, 524, 573, 764, 786, 852, 1146, 1572, 2292, 9301, 13561, 18602, 25021, 27122, 27903, 37204, 40683, 50042, 54244, 55806, 75063, 81366, 100084, 111612, 150126, 162732, 300252, 1776491, 3552982, 5329473, 7105964, 10658946, 21317892]

約数ペア:

[(1, 21317892), (2, 10658946), (3, 7105964), (4, 5329473), (6, 3552982), (12, 1776491), (71, 300252), (131, 162732), (142, 150126), (191, 111612), (213, 100084), (262, 81366), (284, 75063), (382, 55806), (393, 54244), (426, 50042), (524, 40683), (573, 37204), (764, 27903), (786, 27122), (852, 25021), (1146, 18602), (1572, 13561), (2292, 9301)]