21210764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16417}}^1$

素因数の和:16457

約数の個数: 24

約数和(自身を含む): 41373360

約数和(自身を除く): 20162596

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16417, 32834, 65668, 279089, 311923, 558178, 623846, 1116356, 1247692, 5302691, 10605382, 21210764]

約数ペア:

[(1, 21210764), (2, 10605382), (4, 5302691), (17, 1247692), (19, 1116356), (34, 623846), (38, 558178), (68, 311923), (76, 279089), (323, 65668), (646, 32834), (1292, 16417)]