21955128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{5413}}^1$

素因数の和:5448

約数の個数: 48

約数和(自身を含む): 59445720

約数和(自身を除く): 37490592

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 5413, 10826, 16239, 21652, 32478, 43304, 64956, 70369, 129912, 140738, 211107, 281476, 422214, 562952, 844428, 914797, 1688856, 1829594, 2744391, 3659188, 5488782, 7318376, 10977564, 21955128]

約数ペア:

[(1, 21955128), (2, 10977564), (3, 7318376), (4, 5488782), (6, 3659188), (8, 2744391), (12, 1829594), (13, 1688856), (24, 914797), (26, 844428), (39, 562952), (52, 422214), (78, 281476), (104, 211107), (156, 140738), (169, 129912), (312, 70369), (338, 64956), (507, 43304), (676, 32478), (1014, 21652), (1352, 16239), (2028, 10826), (4056, 5413)]