21178236

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3203}}^1$

素因数の和:3258

約数の個数: 48

約数和(自身を含む): 53827200

約数和(自身を除く): 32648964

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 114, 116, 174, 228, 348, 551, 1102, 1653, 2204, 3203, 3306, 6406, 6612, 9609, 12812, 19218, 38436, 60857, 92887, 121714, 182571, 185774, 243428, 278661, 365142, 371548, 557322, 730284, 1114644, 1764853, 3529706, 5294559, 7059412, 10589118, 21178236]

約数ペア:

[(1, 21178236), (2, 10589118), (3, 7059412), (4, 5294559), (6, 3529706), (12, 1764853), (19, 1114644), (29, 730284), (38, 557322), (57, 371548), (58, 365142), (76, 278661), (87, 243428), (114, 185774), (116, 182571), (174, 121714), (228, 92887), (348, 60857), (551, 38436), (1102, 19218), (1653, 12812), (2204, 9609), (3203, 6612), (3306, 6406)]