21300558

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 27947442

約数列:

[1, 2, 3, 6, 17, 19, 29, 34, 38, 51, 57, 58, 87, 102, 114, 174, 323, 379, 493, 551, 646, 758, 969, 986, 1102, 1137, 1479, 1653, 1938, 2274, 2958, 3306, 6443, 7201, 9367, 10991, 12886, 14402, 18734, 19329, 21603, 21982, 28101, 32973, 38658, 43206, 56202, 65946, 122417, 186847, 208829, 244834, 367251, 373694, 417658, 560541, 626487, 734502, 1121082, 1252974, 3550093, 7100186, 10650279, 21300558]

約数ペア:

[(1, 21300558), (2, 10650279), (3, 7100186), (6, 3550093), (17, 1252974), (19, 1121082), (29, 734502), (34, 626487), (38, 560541), (51, 417658), (57, 373694), (58, 367251), (87, 244834), (102, 208829), (114, 186847), (174, 122417), (323, 65946), (379, 56202), (493, 43206), (551, 38658), (646, 32973), (758, 28101), (969, 21982), (986, 21603), (1102, 19329), (1137, 18734), (1479, 14402), (1653, 12886), (1938, 10991), (2274, 9367), (2958, 7201), (3306, 6443)]