221237128

素因数分解:

$2^3\times 7^1\times {\mathrm{1019}}^1\times {\mathrm{3877}}^1$

素因数の和:4909

約数の個数: 32

約数和(自身を含む): 474667200

約数和(自身を除く): 253430072

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1019, 2038, 3877, 4076, 7133, 7754, 8152, 14266, 15508, 27139, 28532, 31016, 54278, 57064, 108556, 217112, 3950663, 7901326, 15802652, 27654641, 31605304, 55309282, 110618564, 221237128]

約数ペア:

[(1, 221237128), (2, 110618564), (4, 55309282), (7, 31605304), (8, 27654641), (14, 15802652), (28, 7901326), (56, 3950663), (1019, 217112), (2038, 108556), (3877, 57064), (4076, 54278), (7133, 31016), (7754, 28532), (8152, 27139), (14266, 15508)]